Callahan William R

Callahan is an Irish surname, anglicized from Ó Ceallacháin. Those bearing it include: == In military == John H. Callahan (1845–1914), Civil War soldier and Medal of Honor recipient Lawrence Kingsley Callahan (1894–1977), American military aviator == In sports == Ben Callahan, baseball player Bill Callahan (football coach), American football coach Bryce Callahan, American football player Gerry Callahan, sports writer Henry Callahan, ultimate (frisbee) player Jamie Callahan, American baseball…