Bish was born in Springfield, Illinois, USA, on 2 October 1912. She attended Springfield High School.
In the early 1930s, she married William Wright, with whom she had two children: Donald Wright Sr. and Delores Hughes (born 1933). She later remarried to Edgar A. Bish. She worked at Sangamo Electric.
At the age of 109, she underwent hip replacement surgery. She recovered from COVID-19 on two occasions.
One of her aunts, Jessie Rollins, lived to be 107.
As of her 111th birthday in October 2023, she was the second-oldest known living person in the U.S. state of Illinois, behind Susie Lewis (born 11 August 1911).
* “‘A beautiful woman inside and out:’ Wenonah Bish turns 111 and shares secrets to longevity” – The State Journal-Register, 29 September 2023