The following data is extracted from A History of the Pioneer Families of Missouri - Montgomery County.
Caleb Summers was raised in Montgomery County, Maryland, where he married Rachel Crawford. In 1796 he settled in Jefferson County, Kentucky. His children were Polly, Benjamin, Robert, Thomas, and. Malinda. Robert married his cousin, Grace Summers, and settled in Pike County, Missouri, in 1834. His children were William B., Elizabeth, Caleb L., Noah, Benjamin F., George, Robert A., and Thomas. William B. married the widow Tucker, whose maiden name was Margaret J. Bryan, and settled in Montgomery County in 1840. Caleb L. married Sallie A. Bryan, and settled in Montgomery County in 1840. Benjamin F. married Antoinette Sharp, and settled in Montgomery County in 1842. Noah married and settled in Montgomery the same year. Benjamin, son of Caleb Summers, Sr., married: Polly Raferty, and settled in Montgomery County in 1839. The father of Caleb Summers. Sr. came to America in 1750, and the boots he wore then are in the museum at Cincinnati.
Source: A History of the Pioneer Families of Missouri - Montgomery County