Alfred DeRenne was born in 1913 in Illinois. He was a center fielder for the Pittsburgh Pirates organization. His father-in-law, Wilbur Cooper, was his manager. Alfred was drafted into WWII out of spring training, sometime around 1941. He was shot in both legs and lost his career as a player upon returning from WWII. Derenne worked as a baseball scout for 10 years. He and his wife settled in Van Nuys, CA. He died in Los Angeles in 1981.

John "Coop" DeRenne was born in California in 1946. Coop played college baseball at California State University—Northridge. He signed with the Montreal Expos, played two years, and lost his career to an injury. He turned down the opportunity to manage in pro ball to become an educator. He graduated from USC with his Master’s degree in 1970, moved to Hawaii, and has lived there since. He received his Doctoral degree from BYU and began a coaching and professorial career at the University of Hawaii in 1975. He retired from coaching at UH in 1986 to help the careers of his two children.

Coop is a professor in the department of kinesiology and leisure science at the University of Hawaii. He has co-written several books on baseball (see at right, as well as the link above) and published numerous papers on kinesiology and baseball. 

Keoni Beau DeRenne was born in 1979 in Honolulu, Hawaii. He graduated from Iolani High School in Honolulu and attended college at the University of Arizona, where he played baseball. He was drafted in the 12th round in 2000 by the Atlanta Braves, and has played minor league ball from 2000 through 2009. In January 2007 he was signed by the Cleveland Indians, but was released in late March. In 2012 Keoni was coaching for the Gulf Coast League Pirates, a Rookie League affiliate of the Pittsburgh Pirates. Keoni is the fourth generation in his family to play professional baseball. 

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