Complex sentence: After Percy graduated from the University of Chicago (where he was a member of Alpha Delta Phi) in 1941, he went to work full time for Bell & Howell, and within a year he was made a director of the company.
Split into simpler sentences: After Percy graduated from the University of Chicago (where he was a member of Alpha Delta Phi) in 1941. Percy went to work full time for Bell & Howell after college, and within a year he was made a director of the company.