Velma West

1927, Ohio, beat her husband to death with a claw hammer.
Escaped from Ohio Reformatory for Women, 1939 (apparently
clubbing a civilian over the head in the process).

http://www.newsnet5.com/crimestoppers/1244920/detail.html

http://www.ohiohistory.org/etcetera/exhibits/ohiopix/events.cfm?start=16