Family name

People named Callahan

47 people named Callahan appear in 19 places: Salem 7, Cambridge 6, Medford 6 and 16 more. 3 more come from collections that name only a state or no place. The earliest is 1896, the latest 1944. Same surname does not mean related; the books do not say.

• 47people
• 21towns
• 1896–1944years