The following data is extracted from History of Daviess County, Missouri - Jackson Township, Daviess County, Missouri, Biographies.
Was born in Jessamine County, Kentucky, May 6, 1812. His father, Robert P. Peniston, was one of the first settlers of Daviess County. His mother's maiden name was Miss Nancy Nuttall. Our subject was principally reared on a farm, and educated in Kentucky. In 1831, he came with his parents to Daviess County, Missouri, and settled where the old town of Millport formerly stood. It was in this town that Robert P. Peniston operated one of the first mills in the County.
February 17, 1848, Theodore Peniston was married to Miss Susan Witdams, daughter of George Williams, both natives of Virginia. The issue of this union was six children, whose names are as follows: Frances Matilda, wife of Dr. A. F. McFarland, of Gallatin; George W., Anthony, William P., Mary Ann and Robert.
Our subject is one of the oldest settlers now living in this section of the County, and has done a great deal to promote the County's welfare. In former days he practiced law in addition to superintending the working of his farm. He is regarded by all who know him as a quiet and valuable citizen.
Source: History of Daviess County, Missouri - Jackson Township, Daviess County, Missouri, Biographies