The following data is extracted from A History of the Pioneer Families of Missouri - Montgomery County.
Benjamin Estell, of Kentucky, married Anna Claughnaugh, and settled in Boone Co., Mo. They had ten children, and one of their sons, named James, married Matilda VanBibber, daughter of Major Isaac VanBibber, and settled in Montgomery County. Their children were Horatio, Elizabeth A., William K., Isaac V., Pantha, Colelia C., Robert G., Jonathan, Arrata, James W., Benjamin, and Sarah N., Philemon Estell, a brother of James, settled in Montgomery County, and was married three times.
Source: A History of the Pioneer Families of Missouri - Montgomery County