He furthered his studies at the University of Pennsylvania, where he specialized in Latin American history and politics, earning a master's degree and his doctorate.
For a time, Strawbridge was an adjunct professor at Widener University in Chester, Pennsylvania, where he remains a member of its board of trustees.
George Strawbridge Jr. was a member of the board of directors of the Campbell Soup Company from 1988 to 2009,[1] filling the vacancy left by his ailing father, who died in 1990.
Strawbridge was the co-owner, then majority owner of the Tampa Bay Rowdies soccer franchise of the old North American Soccer League from the team's founding in July 1974[2] until he and later partners Lamar Hunt and Bill McNutt sold the club after the 1983 season to investors Stella Thayer, Bob Blanchard and Dick & Cornelia Corbett.
Strawbridge was an active shareholder and director of the Buffalo Sabres NHL ice hockey club and a member of the team's executive committee for more than thirty years.
[18] According to WGR 550 sports radio in Buffalo, New York, "In the 1990s, Strawbridge expanded revenue streams and played a leading role in producing new capital for the franchise.
When illness and other factors forced the Knox family to limit their involvement, it was Strawbridge's commitment to Buffalo hockey that helped keep the Sabres alive."
His notable runners includes: For seven consecutive years [2007 – 2013] George Strawbridge Jr.’s Augustin Stable finished as the leading overall breeder of Pennsylvania-bred horses.
Leading runners of 2013 bred by Strawbridge include Grade 3 winner Kitten's Point and Irish stakes-placed Sir Ector.