West of Major Craig’s home, a short distance east of West Alley, was the large frame dwelling of Colonel O’Hara. O’Hara was the most enterprising citizen in the town, and an important factor in its early development. At one time he was engaged in almost a dozen enterprises. He was also the largest owner of real estate both in Pittsburgh, and Allegheny County, resident in the borough. Among the older merchants were William Christy, John Irwin, and William Irwin. They had formerly been partners, but the partnership had long since been dissolved,[160] and each now had a store of his own. Christy’s establishment was at the northwest corner of Market and Water streets. He sold all kinds of cloths and velvets, cassimeres, corduroys, and flannels, teas, sugar, and “common groceries of every denomination.”[161] During the Virginia régime, he was a lieutenant in the Pittsburgh militia, and in 1802 was town clerk.[162] Adjoining Christy’s store was that of Dr. Andrew Richardson. Richardson was a physician. At this time physicians not only prescribed medicines, but prepared and sold them, and Richardson was no exception. His advertisement reads like that of a latter-day druggist: “Oil of Vitriol. I have for sale at my medical store a quantity of oil of vitriol which I will sell low for cash. Also a variety of drugs and medicines which I will sell wholesale or retail at the same terms.”[163] He was prominent in many respects. Besides being a physician, he was a justice of the peace, and a leader in politics. In January, 1800, Governor McKean appointed him Register and Recorder of Allegheny County in place of Samuel Jones, his Federalist father-in-law,[164] but he soon relinquished the office. He was likewise a prominent Freemason, being secretary of Lodge No. 45, and was well known as a public speaker. At the dinner given on the first anniversary of the inauguration of President Jefferson he was one of the two presiding officers.[165] On St. John the Evangelist’s Day, December 27, 1798, he delivered an oration before Lodge No. 45, which was considered of such importance that the lodge procured its publication in the _Pittsburgh Gazette_.