Born in New Britain, Connecticut, to Polish immigrants,[1] Maciora attended high school.
Grocer.
He served as a member of the New Britain, Connecticut, common council from 1926 to 1934.
Business owner.
He served as a member of the Connecticut House of Representatives from 1932 to 1937.
He served as chairman of the New Britain, Connecticut, police board from 1934 to 1940.
Insurance agent.