Oscar G. Tallman was born March 17, 1882, in Tower City, Schuylkill County, Pa., the son of Henry and Mary (Schreffler) Tallman. He worked on a farm and attended the public schools until seventeen years of age, and in 1900 came to Northampton, and for a period of seven years was employed there in various capacities. In 1907 Mr. Tallman came to Allentown and assumed the proprietorship of the cafe now know as “The Old Heidelberg,” South Sixth Street. Two years later he established Tallman's Cafe on Hamilton Street, near Seventh with Leh's Department store adjacent to the east at 626-630 Hamilton, and the Lehigh Valley Trust Company adjacent on the west at 634 Hamilton. Tallman also owned a drugstore and a tire company. In 1927, Leh's purchased the property and incorporated the cafe into its store.