C1900 Shirley President Suspenders Posters
 

Would anyone have any knowledge of the Shirley President Suspenders company, who produced these c1900 posters below. I shot these at the 07' National in the booth of Glen Mechanick. I used them as this week's Sports Antique of the Week. Did the company make cards?
<img src="http://i213.photobucket.com/albums/cc120/CarltonHendricks/Batter-1.jpg">
<img src="http://i213.photobucket.com/albums/cc120/CarltonHendricks/Bowler.jpg">
<img src="http://i213.photobucket.com/albums/cc120/CarltonHendricks/Fisher.jpg">
<img src="http://i213.photobucket.com/albums/cc120/CarltonHendricks/Tennis.jpg">