YEATES, Jasper, merchant, born in Yorkshire, England; died near New Castle, Delaware, in 1720. He emigrated to the West Indies, and afterward removed to Chester, Pennsylvania, where he built and resided in a venerable mansion that is still standing, and was afterward Mrs. Deborah Logan's. He also erected extensive granaries on the creek. In 1701 he was constituted by William Penn one of the four burgesses of Chester, and in 1703 was elected chief burgess. In 1694 he was appointed justice of the court for Chester county, and from 1704 till 1710 and from 1717 till his death he was associate-justice of the supreme courts of the province of Pennsylvania and the lower counties on the Delaware. In 1696 he was admitted to a seat in the provincial council of Pennsylvania. In 1700 he was elected a representative of New Castle county in the general assembly of the province, and, after the separation of the lower counties on the Delaware, was chosen a representative and speaker of their assembly.--His grandson, Jasper, jurist, born in Philadelphia, Pennsylvania, 9 April, 1745 ; died in Lancaster, Pennsylvania, 14 March, 1817, was graduated at the College of Philadelphia in 1761, studied law, was admitted to the bar in 1765, and in 1774 was chosen a member of the Lancaster county committee of correspondence, of which he became chairman in 1776. Fourteen years afterward he sat in the convention that ratified the constitution of the United States. From 1791 until his death he was an associate justice of the supreme court of Pennsylvania. In 1794 President Washington appointed him a commissioner to confer with the inhabitants of the western counties of Pennsylvania, for the settle-meat of the whisky insurrection. Judge Yeates preserved notes of judicial proceedings in which he took part, and prepared them for the press. They were issued, after his death, as "Reports of Cases Adjudged in the Supreme Court of Pennsylvania, with some Select Cases at Nisi Prius, and in the Circuit Courts, from 1791 till 1808 " (4 vols., Philadelphia, 1817-'19).--His daughter, Catharine, benefactor, born in Lancaster, Pennsylvania, in 1783; died there, 7 June, 1866, devoted a legacy of $26,000 to founding the Yeates institute for the education of young men for the ministry of the Protestant Episcopal church, and also contributed to its maintenance the sum of $800 yearly.