After a bit of searching, it is likely that the Young of the Y.C. pad was Jesse S. Young of Chicago. He had the High Amateur Singles Average of .9509 and tied 2nd Doubles High Average at .8500 in 1909
January 22, 1910 Sporting Life, p. 22
https://digital.la84.org/digital/collection/p17103coll17/id/30303

He and H.D. Cadwallader competing at the Chicago Gun Club
November 15, 1913 Forest & Stream
https://books.google.com/books?id=yBwcAQAAMAAJ&pg=PA632&lpg