Complex sentence: Perry's father, Lowell W. Perry was an All American Football player at Michigan in 1951 and with the Pittsburgh Steelers in 1956 where he became the first African American assistant coach in the NFL in 1957.
Split into simpler sentences: Perry's father, Lowell W. Perry was an All American Football player at University of Michigan in 1951. He played professionally for the Pittsburgh Steelers in 1956 where he became the first African American assistant coach in the NFL in 1957.