Mary Lee Abbott (July 27, 1921-August 23, 2019) was an American abstract expressionist painter and one of three female members of the Artist’s Club in New York.
Biography on Wikipedia: https://en.wikipedia.org/wiki/Mary_Abbott_(artist)

All Green by Mary Abbott
c. 1954 / Oil on linen / 49″x45-1/8″ / Denver Art Museum, Colorado

Mary Abbott on Artnet: http://www.artnet.com/artists/mary-abbott/

Further reading:
https://www.huffpost.com/entry/mary-abbott-a-wake-up-cal_b_1389281?ec_carp=7611884569565380991
https://www.re-thinkingthefuture.com/architectural-community/a3878-life-of-an-artist-mary-abbott/
https://www.washingtonpost.com/local/obituaries/mary-abbott-abstract-expressionist-with-an-unsung-influence-dies-at-98/2019/10/02/0980fe82-e51f-11e9-a6e8-8759c5c7f608_story.html

Abigail May Alcott Nieriker (July 26, 1840-December 29, 1879) was an American artist. She was the youngest sister of Louisa May Alcott and the basis for the character Amy in Little Women.
Biography on Wikipedia: https://en.wikipedia.org/wiki/Abigail_May_Alcott_Nieriker

May Alcott Nieriker, Still life with Owl by May Alcott Nieriker
1879 / Orchard House, Concord, MA / Image from Daily Art Magazine

Studying Art Abroad, and How to Do it Cheaply by May Alcott Nieriker:
https://archive.org/details/studyingartabroa00nier/page/n5/mode/2up

Further reading:
https://www.dailyartmagazine.com/may-alcott-lucky-star/
https://www.csmonitor.com/1987/1022/hmay.html
https://www.19thc-artworldwide.org/autumn16/dabbs-on-the-travel-writings-of-may-alcott-nieriker

Elisabeth von Eicken (July 18, 1862-July 21, 1940 was a German landscape painter.
Biography on Wikipedia: https://en.wikipedia.org/wiki/Elisabeth_von_Eicken

Fishermen on the Bodden near Ahrenshoop by Elisabeth von Eicken
C.1895 / Oil on canvas / 12-3/5″x9-4/5″ / Private collection

Elisabeth von Eicken on Artnet: http://www.artnet.com/artists/elisabeth-von-eicken/

Further reading:
https://www.askart.com/artist/Elisabeth_von_Eicken/11147979/Elisabeth_von_Eicken.aspx
https://translate.google.com/translate?hl=en&sl=de&u=https://galerie-der-panther.de/elisabeth-von-eicken/&prev=search&pto=aue
http://watercoloursdpk.blogspot.com/2010/04/joop-van-egmond.html

Elizabeth “Bessie” MacNicol (1869–1904) was a Scottish painter and member of the Glasgow Girls group of artists.
Biography on Wikipedia: https://en.wikipedia.org/wiki/Bessie_MacNicol

A Girl of the Sixties by Bessie MacNicol
c.1900 / Oil on canvas / 32″x24″ / Glasgow Museums Resource Centre, Scotland, UK

Bessie MacNicol on Artnet: http://www.artnet.com/artists/bessie-macnicol/

Further reading:
https://www.theglasgowstory.com/image/?inum=TGSE01167&t=2
https://artuk.org/discover/artists/macnicol-bessie-18691904
https://www.nationalgalleries.org/art-and-artists/glossary-terms/glasgow-girls

* Wikipedia lists the date as July 5, Grove Art Online lists it as July 15, and Benezit Dictionary of Artists as July 17, and various sites support one or another of these three. I have arbitrarily chosen to go with the 15th.