Complex sentence: Baseball Hall of Fame inductee Warren Giles, future President of the National League was President of the Plowboys Franchise from 1919--1922 and from 1920 to 1922 the Plowboys were Managed by Earle Mack, son of Baseball Hall of Fame owner/manager Connie Mack.
Split into simpler sentences: Baseball Hall of Fame inductee Warren Giles, future President of the National League, was the team president of the Plowboys franchise from 1919--1922. From 1920 to 1922, the Plowboys were managed by Earle Mack, son of Baseball Hall of Fame owner/manager Connie Mack.