Complex sentence: Four weeks after the bombing of Pearl Harbor, Collins married Jane Pennock, the daughter of Hall-of-Fame pitcher Herb Pennock and the general manager of the Phillies from 1944 until his sudden death in January 1948.
Split into simpler sentences: Four weeks after the bombing of Pearl Harbor, Collins married Jane Pinnock. She was the daughter of Hall-of-Fame pitcher Herb Pennock, who served as the general manager of the Phillies from 1944 until his sudden death in January 1948.