Just to add a little tidbit about the "Original Piano Trio" [190923
MMDigest], there is a good article about them on the Live Performance
web site.  See  http://www.live-performance.com/opt.html 

The trio are identified as Edgar Fairchild, Herbert Clair, and George
Dilworth.  In the Fall of 1922, they appeared on the Globe Theatre
stage during the run of "Scandals", heavily reported in both The
Music Trade Review and The Music Trades.

Terry Smythe
Winnipeg, Manitoba, Canada