This page is for Thomson's Mercantile & Professional Directory, Baltimore City 1851 & 1852. http://www.ls.net/~newriver/md/mdthom1851.htm It has everything listed from agents, photographers, merchants, umbrella dealers, florists, hotels keepers, silver ware manufactuers, book binders, womens shoe makers, you name it. It is a real whose who of the city. Hope you find one of your ancestors listed there! Mary