Nellie Verne Walker (December 8, 1874-July 10, 1973) was an American sculptor. At 4’8″ and less than a hundred pounds, Walker seemed an unlikely candidate to be a sculptor. Because of her diminutive size and monumental work, she became known as “the lady who lived on ladders.”
Biography on Wikipedia: https://en.wikipedia.org/wiki/Nellie_Walker

“That Best Portion of a Good Man’s Life His Little Nameless Unremembered Acts of Kindness and of Love”
Shippey family monument by Nellie Verne Walker
1922 / Rosehiil Cemetery, Chicago / Photograph by Jim Craig

Nellie V. Walker’s obituary on newspapers.com: https://www.newspapers.com/clip/16400459/nellie-walker-death/

Further reading:
http://uipress.lib.uiowa.edu/bdi/DetailsPage.aspx?id=388
Nellie Verne Walker: An Appreciation by Josephine Craven on Google Books: https://bit.ly/3EINf5i
https://gravelyspeaking.com/2016/03/19/sculptress/