Beatrice Kenner and Midred Smith: Sister Inventors

Beatrice Kenner and Midred Smith: Sister Inventors

Beatrice Kenner’s inventions were focused largely on making life easier and less annoying for herself and the people around her, including period products. Mildred Smith’s invention was about family, and it grew from her disability after she developed multiple sclerosis.

Research:

  • “Deaths.” Evening Star. 11/27/1956. https://www.newspapers.com/image/869672410/
  • “Mildred E. Smith.” Obituary. Washington Post. 8/19/1993. https://www.washingtonpost.com/archive/local/1993/08/19/n-hugh-mcdiarmid-dies-at-86/beab0fdf-9aec-4ac1-bd0a-cfcef223f1fa/
  • Byram, W.F. and R.P. Phronebarger. “Current Supply System for Electric Railways.” U.S. Patent 1,134,871. 4/6/1915.
  • Coren, Ashleigh, et al. “The Many Inventions of Beatrice Kenner.” Side Door. Smithsonian Institution. 4/6/2022. https://www.si.edu/sidedoor/many-inventions-beatrice-kenner
  • Davidson, S.N. “Pants Presser.” U.S. Patent 1,088,329.
  • Hambrick, Arlene. “Biographies of Black Female Scientists and Inventors: An Interdisciplinary Middle School Curriculum Guide. ‘What Shall I Tell My Children Who Are Black?’” Graduate School of the University of Massachusetts. Doctor of Education Dissertation. 1993. DOI: 10.7275/14756666
  • Hodal, Kate. “Cloth, cow dung, cups: how the world's women manage their periods.” The Guardian. 3/14/2019. https://www.theguardian.com/global-development/2019/apr/13/cloth-cow-dung-cups-how-the-worlds-women-manage-their-periods
  • Jeffrey, Laura S. “Amazing American Inventors of the 20th Century.” Enslow Publishers, Inc.. 1996, 2013.
  • Kenner, Mary Beatrice. “Busch Traffic.” Daily Press. 11/12/1984. https://www.newspapers.com/image/234268212/
  • Kijowska, Wiktoria. “Sanitary suspenders to Mooncups: a brief history of menstrual products.” Victoria and Albert Museum. https://www.vam.ac.uk/articles/a-brief-history-of-menstrual-products
  • King, Helen. “From rags and pads to the sanitary apron: a brief history of period products.” The Conversation. 4/25/2023. https://theconversation.com/from-rags-and-pads-to-the-sanitary-apron-a-brief-history-of-period-products-203451
  • O’Sullivan, Joan. “Disease Victim Creates Game.” The Orange Leader. 10/8/1982. https://www.newspapers.com/image/1008083420/
  • Ravey, Julia and Dr. Ella Hubber. “Unstoppable: Mary Beatrice Davidson Kenner.” Unstoppable. BBC. 6/17/2024. https://www.bbc.co.uk/sounds/play/w3ct5rmq
  • Sluby, Patricia Carter. “African American Brilliance.” Tar heel junior historian [2006 : fall, v.46 : no.1]. https://digital.ncdcr.gov/Documents/Detail/tar-heel-junior-historian-2006-fall-v.46-no.1/3700440?item=5369779
  • Smith, Mildred E. “Family Relationships Card Game.” U.S. Patent 4,230,321. 10/28/1980. https://ppubs.uspto.gov/api/pdf/downloadPdf/4230321
  • Tsjeng, Zing. “Forgotten Women: The Scientists.” Cassell Illustrated. 2018.
  • Tsjeng, Zing. “The Forgotten Black Woman Inventor Who Revolutionized Menstrual Pads.” Vice. 3/8/2018. https://www.vice.com/en/article/mary-beatrice-davidson-kenner-sanitary-belt/
  • Washington Afro American. “Jabbo Kenner Leads Boys to Clean Life.” 11/15/1947. https://www.newspapers.com/image/1042304374/
  • Washington Daily News. “Mrs. Kenner Is In Clover.” 6/2/1958. https://www.newspapers.com/image/1042178951/

See omnystudio.com/listener for privacy information.

Episoder(2576)

Paper Sewing Patterns, Part 2

Paper Sewing Patterns, Part 2

Ellen Curtis Demorest and Ebeneezer Butterick are the two names most often invoked as the start of multi-sized patterns printed for home sewists. Once they proved it was a viable business, a lot of other offerings appeared. Research: Alcega, Joan de. “Libro de geometria, practica y traça.” Madrid.1580. Accessed online:https://www.loc.gov/resource/gdcwdl.wdl_07333/ Aldarondo, Abner. “A Master Tailor’s Manual.” Folger Shakespeare Library. Jan. 10, 2023. https://www.folger.edu/blogs/collation/a-master-tailors-manual/ Bertrand, J.E. “Descriptions des arts et métiers faites ou approuvées.” l'Imprimerie de la Société Typographique. 1780. Accessed online: https://play.google.com/store/books/details?id=SAWFeeXzMgYC&rdid=book-SAWFeeXzMgYC&rdot=1 Boullay, Benoit. “Le Tailleur Sincère, Contenant Ce Qu'il Faut Observer Pour Bien Tracer, Couper.” (Reproduction.) Hachette Livre Bnf. 2012. Buckley, Cheryl. “On the Margins: Theorizing the History and Significance of Making and Designing Clothes at Home.” Journal of Design History, vol. 11, no. 2, 1998, pp. 157–71. JSTOR, http://www.jstor.org/stable/1316192 Crane, Ellen Bicknell. “Historic Homes and Institutions and Genealogical and Personal memoirs of Worcester County, Massachusetts.” Lewis Publishing Company. 1907. Accessed online: https://books.google.com/books?id=nfhSZxL8bTEC&source=gbs_navlinks_s Crossland, Samantha R. “Made in Minneapolis, sewn all over the world.” Hennepin History. 2021, Vol. 80, No. 2. https://hennepinhistory.org/from-the-magazine-made-in-minneapolis/ Demorest, Ellen. “The Question of Labor. Women’s Work and Wages.” New York Times. Nov. 18, 1863. https://timesmachine.nytimes.com/timesmachine/1863/11/18/78710875.pdf?pdf_redirect=true&ip=0 “The Educational Legacy of Simplicity Pattern Company.” Simplicity Patterns. September 2024. https://simplicity.com/blog/the-educational-legacy-of-simplicity-pattern-company Emery, Joy Spanabel. “A History of the Paper Pattern Industry: The Home Dressmaking Fashion Revolution.” Bloomsbury Visual Arts. 2020. Freyle, Diego de. “Geometria Y Traça Para El Oficio De Los Sastres.” Sevilla, Spain. 1588. Accessed online: https://archive.org/details/1588-geometria-y-traca-para-el-oficio-de-los-sastres/page/n1/mode/2up Johnson, Susan. “’Madame’ Demorest—The Woman at the Top of a 19-Century Fashion Empire.” Museum of the City of New York. April 15, 2020. https://www.mcny.org/story/madame-demorest-woman-top-19-century-fashion-empire The Editors of Encyclopaedia Britannica. "Ebenezer Butterick". Encyclopedia Britannica, 25 May. 2025, https://www.britannica.com/biography/Ebenezer-Butterick Britannica, The Editors of Encyclopaedia. "Ellen Louise Curtis Demorest." Encyclopedia Britannica, 11 Nov. 2024, https://www.britannica.com/money/Ellen-Louise-Curtis-Demorest “Demorest’s Illustrated Monthly and Mme. Demorest’s Mirror of Fashions.” April 1865. https://ia802801.us.archive.org/8/items/demorestsillustr00newy/demorestsillustr00newy_bw.pdf “Design Group Americas Voluntarily Files for Chapter 11 Protection, Initiates Sale Process Aimed at Maximizing Value Through Going Concern Transactions.” BusinessWire. July 3, 2025. https://www.businesswire.com/news/home/20250703734892/en/Design-Group-Americas-Voluntarily-Files-for-Chapter-11-Protection-Initiates-Sale-Process-Aimed-at-Maximizing-Value-Through-Going-Concern-Transactions “Joseph M. Shapiro of Simplicity, 79.” New York Times. July 31, 1968. https://timesmachine.nytimes.com/timesmachine/1968/07/31/76959179.pdf?pdf_redirect=true&ip=0 “Millinery.” New York Times. Nov. 7, 1853. https://www.newspapers.com/image/20309463/?match=1&terms=%22Mme.%20Demorest%22 “The 40’s from The War Effort to The New Look - Championing Fashion that Matters.” Simplicity Patterns. September 2024. https://simplicity.com/blog/vogue-patterns-an-evolution-of-american-style Queen, James and William Lapsley. “The Tailor’s Instructor.” Philadelphia. 1809. Accessed online: https://dn790007.ca.archive.org/0/items/taylorsinstructo00quee/taylorsinstructo00quee.pdf Reyes-Martinez, Marcos A. “The Vara: A Standard of Length With a Not-So-Standard History.” National Institute of Standards and Technology. Oct. 11, 2019. https://www.nist.gov/blogs/taking-measure/vara-standard-length-not-so-standard-history Walsh, Margaret. “The Democratization of Fashion: The Emergence of the Women’s Dress Pattern Industry.” The Journal of American History, vol. 66, no. 2, 1979, pp. 299–313. JSTOR, https://doi.org/10.2307/1900878 See omnystudio.com/listener for privacy information.

16 Jul 34min

Paper Sewing Patterns, Part 1

Paper Sewing Patterns, Part 1

Commercially available sewing patterns have been a cornerstone of home stitching for a century. But well before they existed, there were people trying to share sewing patterns. Research: Alcega, Joan de. “Libro de geometria, practica y traça.” Madrid.1580. Accessed online:https://www.loc.gov/resource/gdcwdl.wdl_07333/ Aldarondo, Abner. “A Master Tailor’s Manual.” Folger Shakespeare Library. Jan. 10, 2023. https://www.folger.edu/blogs/collation/a-master-tailors-manual/ Bertrand, J.E. “Descriptions des arts et métiers faites ou approuvées.” l'Imprimerie de la Société Typographique. 1780. Accessed online: https://play.google.com/store/books/details?id=SAWFeeXzMgYC&rdid=book-SAWFeeXzMgYC&rdot=1 Boullay, Benoit. “Le Tailleur Sincère, Contenant Ce Qu'il Faut Observer Pour Bien Tracer, Couper.” (Reproduction.) Hachette Livre Bnf. 2012. Buckley, Cheryl. “On the Margins: Theorizing the History and Significance of Making and Designing Clothes at Home.” Journal of Design History, vol. 11, no. 2, 1998, pp. 157–71. JSTOR, http://www.jstor.org/stable/1316192 Crane, Ellen Bicknell. “Historic Homes and Institutions and Genealogical and Personal memoirs of Worcester County, Massachusetts.” Lewis Publishing Company. 1907. Accessed online: https://books.google.com/books?id=nfhSZxL8bTEC&source=gbs_navlinks_s Crossland, Samantha R. “Made in Minneapolis, sewn all over the world.” Hennepin History. 2021, Vol. 80, No. 2. https://hennepinhistory.org/from-the-magazine-made-in-minneapolis/ Demorest, Ellen. “The Question of Labor. Women’s Work and Wages.” New York Times. Nov. 18, 1863. https://timesmachine.nytimes.com/timesmachine/1863/11/18/78710875.pdf?pdf_redirect=true&ip=0 “The Educational Legacy of Simplicity Pattern Company.” Simplicity Patterns. September 2024. https://simplicity.com/blog/the-educational-legacy-of-simplicity-pattern-company Emery, Joy Spanabel. “A History of the Paper Pattern Industry: The Home Dressmaking Fashion Revolution.” Bloomsbury Visual Arts. 2020. Freyle, Diego de. “Geometria Y Traça Para El Oficio De Los Sastres.” Sevilla, Spain. 1588. Accessed online: https://archive.org/details/1588-geometria-y-traca-para-el-oficio-de-los-sastres/page/n1/mode/2up Johnson, Susan. “’Madame’ Demorest—The Woman at the Top of a 19-Century Fashion Empire.” Museum of the City of New York. April 15, 2020. https://www.mcny.org/story/madame-demorest-woman-top-19-century-fashion-empire The Editors of Encyclopaedia Britannica. "Ebenezer Butterick". Encyclopedia Britannica, 25 May. 2025, https://www.britannica.com/biography/Ebenezer-Butterick Britannica, The Editors of Encyclopaedia. "Ellen Louise Curtis Demorest." Encyclopedia Britannica, 11 Nov. 2024, https://www.britannica.com/money/Ellen-Louise-Curtis-Demorest “Demorest’s Illustrated Monthly and Mme. Demorest’s Mirror of Fashions.” April 1865. https://ia802801.us.archive.org/8/items/demorestsillustr00newy/demorestsillustr00newy_bw.pdf “Design Group Americas Voluntarily Files for Chapter 11 Protection, Initiates Sale Process Aimed at Maximizing Value Through Going Concern Transactions.” BusinessWire. July 3, 2025. https://www.businesswire.com/news/home/20250703734892/en/Design-Group-Americas-Voluntarily-Files-for-Chapter-11-Protection-Initiates-Sale-Process-Aimed-at-Maximizing-Value-Through-Going-Concern-Transactions “Joseph M. Shapiro of Simplicity, 79.” New York Times. July 31, 1968. https://timesmachine.nytimes.com/timesmachine/1968/07/31/76959179.pdf?pdf_redirect=true&ip=0 “Millinery.” New York Times. Nov. 7, 1853. https://www.newspapers.com/image/20309463/?match=1&terms=%22Mme.%20Demorest%22 “The 40’s from The War Effort to The New Look - Championing Fashion that Matters.” Simplicity Patterns. September 2024. https://simplicity.com/blog/vogue-patterns-an-evolution-of-american-style Queen, James and William Lapsley. “The Tailor’s Instructor.” Philadelphia. 1809. Accessed online: https://dn790007.ca.archive.org/0/items/taylorsinstructo00quee/taylorsinstructo00quee.pdf Reyes-Martinez, Marcos A. “The Vara: A Standard of Length With a Not-So-Standard History.” National Institute of Standards and Technology. Oct. 11, 2019. https://www.nist.gov/blogs/taking-measure/vara-standard-length-not-so-standard-history Walsh, Margaret. “The Democratization of Fashion: The Emergence of the Women’s Dress Pattern Industry.” The Journal of American History, vol. 66, no. 2, 1979, pp. 299–313. JSTOR, https://doi.org/10.2307/1900878 See omnystudio.com/listener for privacy information.

14 Jul 38min

SYMHC Class: Poison Control

SYMHC Class: Poison Control

This 2020 episode examines how the U.S. got to the point of having one resource, specifically for poisoning, that’s so reliable and available that it gets printed on the labels of consumer products.See omnystudio.com/listener for privacy information.

12 Jul 36min

Behind the Scenes Minis: Pens and Dog Radios

Behind the Scenes Minis: Pens and Dog Radios

Tracy and Holly talk about their favorite pens, and Tracy describes a unique radio she had as a child.See omnystudio.com/listener for privacy information.

11 Jul 20min

Edwin Howard Armstrong

Edwin Howard Armstrong

Edwin Howard Armstrong isn’t exactly a well-known inventor, but his work in radio literally changed communications around the globe. But his most famous invention – FM radio – became a source of constant frustration after he developed it. Research: Armstrong, Edwin H. “Frequency Modulation and Its Future Uses.” The Annals of the American Academy of Political and Social Science, vol. 213, 1941, pp. 153–61. JSTOR, http://www.jstor.org/stable/1024069 Armstrong, Edwin H. “Personalities in Science.” Scientific American, vol. 154, no. 1, 1936, pp. 3–3. JSTOR, http://www.jstor.org/stable/26144367 “First public radio broadcast.” Guinness World Records. https://www.guinnessworldrecords.com/world-records/381969-first-public-radio-broadcast “FM Inventor Dies in Fall.” The Patriot News. Feb. 2, 1954. https://www.newspapers.com/image/1094174282/?match=1&terms=%22Edwin%20Howard%20Armstrong%22 Lessing, Lawrence P.. "Edwin H. Armstrong". Encyclopedia Britannica, 14 Dec. 2024, https://www.britannica.com/biography/Edwin-H-Armstrong Lessing, Lawrence P. “Man of High Fidelity: Edwin Howard Armstrong.” Bantam. 1969. Lessing, Lawrence P. “The Late Edwin H. Armstrong.” Scientific American, vol. 190, no. 4, 1954, pp. 64–69. JSTOR, http://www.jstor.org/stable/24944524 “Proceedings of the Institute of Radio Engineers, Volume 5.” Institute of Radio Engineers. 1917. Accessed online: https://books.google.com/books?id=YEASAAAAIAAJ&source=gbs_navlinks_s “Radio Broadcast.” Garden City, N.Y.: Doubleday, Page & Co., 1922-1930. https://babel.hathitrust.org/cgi/pt?id=iau.31858044013914&view=1up&seq=277 “Telephoning Without Wires.” The Fort Wayne Journal Gazette. Oct. 20, 1907. https://www.newspapers.com/image/29125618/?match=1&terms=audion%20%22de%20Forest%22 Tsividis, Yannis. “Edwin Armstrong: Pioneer of the Airwaves.” Columbia Magazine. April 1, 2002. https://magazine.columbia.edu/article/edwin-armstrong-pioneer-airwaves Turner, H. M. “Dr. Edwin H. Armstrong, Edison Medalist.” The Scientific Monthly, vol. 56, no. 2, 1943, pp. 185–87. JSTOR, http://www.jstor.org/stable/17796 “What’s the Difference Between AM and FM Radio?” National Inventors Hall of Fame. Aug, 16, 2023. https://www.invent.org/blog/trends-stem/difference-between-am-fm See omnystudio.com/listener for privacy information.

9 Jul 33min

The Humble Ballpoint Pen

The Humble Ballpoint Pen

Before the ballpoint pen, people used their hands, reeds, bamboo, brushes, quills, and eventually nibs to write or draw. But how did things evolve from there to get to things like the fountain pen, and eventually, a ballpoint? Research: "pen." Britannica Library, Encyclopædia Britannica, 26 Jul. 2021. libraries.state.ma.us/login?eburl=https%3A%2F%2Flibrary.eb.com&ebtarget=%2Flevels%2Freferencecenter%2Farticle%2Fpen%2F59036&ebboatid=9265652. Accessed 13 Jun. 2025. "Pen." UXL Science, UXL, 2008. Gale In Context: Science, link.gale.com/apps/doc/CV2646000736/GPS?u=mlin_n_melpub&sid=bookmark-GPS&xid=52ede570. Accessed 27 May 2025 “Patent of Mr. Frederick Bartholomew Folsch, of Oxford street, for improvements on instruments, and pens, to facilitate writing.” https://archive.org/details/jstor-30072521/mode/2up Bayley, Stephen. “Obituary: Baron Marcel Bich.” The Independent. 6/1/1994. https://www.independent.co.uk/news/people/obituary-baron-marcel-bich-1419867.html Bourque, Joseph. “The Waterman Pen.” American Heritage. Jul/Aug92, Vol. 43 Issue 4, p30. Brachmann, Steve. “The Evolution of Modern Ballpoint Pen: A Patent History.” IP Watchdog. 12/10/2014. https://ipwatchdog.com/2014/12/10/the-evolution-of-modern-ballpoint-pen-a-patent-history/id=52550/ Cross, Alonzo T. “Stylographic Pen.” U.S. Patent 232804. 10/5/1880. Daniels, Maygene. “The Ingenious Pen: American Writing Implements from the Eighteenth Century to the Twentieth.” The American Archivist , Summer, 1980, Vol. 43, No. 3 (Summer, 1980). Via JSTOR. https://www.jstor.org/stable/40292316 Di Nardo, Sam. “When was the Fountain Pen Invented: A Brief History.” Dayspring Pens. 1/2/2023. https://www.dayspringpens.com/blogs/the-jotted-line/when-was-the-fountain-pen-invented-a-brief-history-1 Di Nardo, Sam. “Who Invented the Ballpoint Pen?: A Brief History.” Sayspring Pens. s1/2/2023. https://www.dayspringpens.com/blogs/the-jotted-line/who-invented-the-ballpoint-pen-history?srsltid=AfmBOopQR061KHIKpgm_a0a0IHiTSiY_V-ahwIFQxU5MYzLLQ5vpHjXv Dowling, Stephen. “The cheap pen that changed writing forever.” BBC. 10/29/2020. https://www.bbc.com/future/article/20201028-history-of-the-ballpoint-pen German Patent and Trademark Office. “László Biró´s 125th birthday.” https://www.dpma.de/english/our_office/publications/milestones/inventionsthatmadehistory/kugelschreiber/index.html Laszlo, Josef Biro. “Writing Instrument.” U.S. patent 2390636. 12/11/1945. Loud, J.J. “Pen.” U.S. Patent 392046. 10/30/1888. National inventors Hall of Fame. “Laszlo Josef Biro.” https://www.invent.org/inductees/laszlo-josef-biro Riesberg, Van Vechton. “Fountain Pen.” U.S. Patent 1171652. 2/15/1916. Rothman, Lily. “Why the Invention of the Ballpoint Pen Was Such a Big Deal.” Time. 10/29/2015. https://time.com/4083274/ballpoint-pen/ The American Society of Mechanical Engineers. “#236 Birome Ballpoint Pen Collection.” https://www.asme.org/about-asme/engineering-history/landmarks/236-birome-ballpoint-pen-collection Waterman, L.E. “Fountain Pen.” U.S. Patent 293545. 2/12/1884. See omnystudio.com/listener for privacy information.

7 Jul 35min

SYMHC Classics: Lettuce, Slavery, and the Bibb Legacy

SYMHC Classics: Lettuce, Slavery, and the Bibb Legacy

This 2022 episode starts with the story of John Bibb, credited with cultivating Bibb lettuce. But his family’s legacy, good and bad, is all tied to having enslaved people build their familial wealth. See omnystudio.com/listener for privacy information.

5 Jul 33min

Behind the Scenes Minis: Murder and War

Behind the Scenes Minis: Murder and War

Holly discusses the inscription on the Beachamps' headstone and the court of public opinion. Tracy shares information about Wilfred Owen's brother Harold.See omnystudio.com/listener for privacy information.

4 Jul 25min

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