I know of three possibilities for the Proprietor of this product. First, there was Richard & George Wright, then, there was a T.A. Wright listed in the 1861 Philadelphia Directory having a "Hair Tonic Depot" at 121 S. 4th. And finally, there was a Wholesale Druggist named Peter T. Wright in Philadelphia who marketed other medicines in pontilled bottles. I have not been able to tie any of them directly to this product yet.