Jemima Pearsall Castleman married Johannes "Lewis" Castleman in Frederick, Virginia, in 1765, when she was approximately fifteen years of age. She was the mother of eight children that were born between 1770 and 1797. She came to the frontier with her husband sometime between 1787 and 1800. They lived on a farm along Clear Creek in Woodford County that included a tannery and a distillery that made apple brandy. The Castlemans enslaved ten persons in 1810 and eighteen persons in 1819.
Johannes "Lewis" Castleman was born in 1744 in Stone Arbria, Tryon County, in the English colony of New York. In 1765, he married Jemima Margaret Pearsall in Frederick, Virginia. He first appears in Kentucky records in 1787 in a petition that established Charlestown, and again in 1788 when Woodford County was carved out of Fayette County. He had a farm along Clear Creek, which included a tannery and a distillery that made apple brandy. He enslaved ten persons in 1810 and eighteen persons in 1819.
