J. Cal Ewing

James Calvin Ewing was an American baseball executive who was the founder and president of the Pacific [Coast League] 1907–1909 and owner of the San [Francisco Seals |San Francisco Seals] and Oakland [Oaks |Oakland Oaks].
Ewing co-founded the Pacific Coast League in 1903 with Henry [Harris |Henry Harris]. In the aftermath of the 1906 [San Francisco earthquake], Ewing used his own money to sustain the league. He was League President 1907–1909.
He owned the Oaks until 1929 until forced to sell, as a result of ill health.
He financed the construction of Ewing Field, which bore his name.
In addition, Ewing is a member of the Pacific [Coast League Hall of Fame].