[2] Yeates purchased in 1697, a tract of land at the mouth of Naaman's Creek in New Castle County, on which he erected flour and bolting mills, and the following year he purchased additional land in Chester, where he established extensive granaries.
He also established a bakery, and erected for himself the "venerable mansion," overlooking the Delaware River, where he resided for most of his life.
He was admitted to the Pennsylvania Provincial Council on December 25, 1696, where he held a position for the rest of his life.
[1] In 1701, Yeates purchased 1,377 acres of land along the Delaware River, where he built warehouses and stores and had a large mercantile business.
[4] After his business prospered, Yeates again accepted the post of chief justice, succeeding Richard Birmingham on August 11, 1717.