 In 1798 the first brick house in Williamsport was erected on Front Street, between Market and Mulberry, by Andrew Tulloh, a lawyer.The bricks were made on the banks of Grafius Run where that stream crossed Hepburn Street.In 1799, a post office opened at the corner of Third and State Streets in what is now downtown, and the following year, a jail was constructed at the northeast corner of William and Third Streets.