Louis G. Parker, died Cleveland 1960 age 95. 

Parker appears to have been a very avid card player.  He was active in whist and bridge societies and held executive positions in national organizations of those card games when those games were at the height of their popularity in the US.  In the early 1900's he was regarded as the premier whist tournament organizer in the country.

When he ordered the chips in 1921 he was a resident of the Cleveland Athletic Club (picture above, right)--where he lived until the day he died (a lifelong bachelor).  I'm assuming, because of his prolific activity in card games, that he knew people at USPC pretty well.

For most of his life in Cleveland, Parker held executive positions for the Cleveland Frog and Crossing Company--they manufactured railroad equipment, primarily railroad crossing stuff.  Found no evidence that he ever owned a club or cardroom or was involved in the gambling business.  But he certainly liked to play cards; and although I found no direct evidence of him being a poker player it would be hard to believe he did not do so--probably using the LGC chips. 

Can't quite figure out the letters on the chips. Maybe he had a place in the Cleveland Athletic Club building called LG's Cardroom--I mean, if he had a home game it would have been at the CAC, right????  Or maybe he helped manage the CAC's cardroom????