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Leroi Roscoe Chappelle, who is the stepfather of former Arizona general manager Dave Stewart. The soon-to-be 102-year-old Chappelle is a native of Phoenix and he competed against Robinson in college track meets.
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Dr. Raymond Doswell, the vice president of curatorial services for the Negro Leagues Baseball Museum in Kansas City.
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Dr. Michael Long, the author and editor of the book 42 Today: Jackie Robinson & His Legacy.
Chappelle first met Robinson when he was 15 or 16 years old and training for the U.S. Olympic high-jump team. Chappelle went to visit relatives in Los Angeles around that time and encountered Robinson.
The two later reconnected when Robinson was attending Pasadena Junior College and Chappelle was at Phoenix (Junior) College. The only time the two competed in the same event was a relay race in which he said he was fortunate enough to move Robinson to the middle of the dirt track where it was muddy, slowing Robinson down so he could beat him.