Last name Crumbley (Crumbley 
) , worldwide, is quite a rare family name. The surname Crumbley is habitual in the United States, where it is a rare surname, the United Kingdom, where it is a very rare surname, and Australia.
| VARIANT | COUNTRY |
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| Crumbley | Canada, United Kingdom, Australia, United States, New Zealand |
| elmer crumbley American jazz musician, US (b. 1908) |
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| alex crumbley American baseball player, US (b. 1909) |
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| george crumbley American sports executive (b. 1923) |
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| d. larry crumbley American professor of accounting (1941 -), focuses on forensic accounting (b. 1941) |
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| deidre helen crumbley (b. 1947) |
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| earnest crumbley college basketball player (2001–2004) Florida Atlantic |
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| kory crumbley college basketball player (2005–2006) Bethune-Cookman |
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