Crumbley is an Irish surname. People with this surname include:
Alex Crumbley (19091938), American baseball player Elmer Crumbley (19081993), American trombonist Ethan Crumbley (born 2006), American perpetrator of the Oxford High School shooting James Crumbley (born 1976) and Jennifer Crumbley (born 1978), parents and collaborators of Ethan George Crumbley (19232009), American founder of the Peach Bowl
See also
Greg Crumbly, American artist