Upson used a Greener at the First DuPont Grand Smokeless Championship Handicap Live-bird Tournament October 1895
https://digital.la84.org/digital/collection/p17103coll17/id/53099

A profile in 1897, but no mention of his gun
https://digital.la84.org/digital/collection/p17103coll17/id/45603/rec/4

I couldn't find what gun he used thereafter nor in 1914