I think you are both correct that this signature is not Stanley "Bucky" Harris, but I don't think its clubhouse. After some additional research, I've come to believe is that this is a 1928 or 1929 team signed ball from the PCL's Sacramento Senators that included a "Bucky" Harris ("Bucky" Harris McGilliard) of their own who went on to relative stardom in Japanese baseball in the 1930's...
https://www.statscrew.com/minorbaseb...ss14216/y-1928
https://www.facebook.com/22018121889...3528356227577/
I appreciate the help of the board.
Best,
Jon
www.dugouttreasures.com