Cicero, Illinois
Born in Anderson, Texas, Maciejewski attended the public schools of Cicero, Illinois, and Lewis Institute, Chicago, Illinois. He became engaged in the wholesale and retail coal business in Cicero, Illinois, in 1916. He served as assistant agent in charge of relief of Cook County, Illinois from 1925 to 1928. He served as member of the Democratic State and National Committees. He served as a delegate to the Democratic National Convention in 1928, and as supervisor and treasurer of Cicero, Illinois from 1932 to 1939.