The History of Hendricks County (Chicago: Interstate Publishing, 1885)--Marion Township, page 693
Franklin Underwood was born in Decatur County, Ind., March 1, 1826, and was in his tenth year when his parents, John and Rebecca Underwood, settled in this township. He lived at home till his marriage, in the fall of 1850, to Catherine Martin, a native of Shelby County, Ky., and daughter of Benjamin Martin. Three children were born to them-- Mrs. Rebecca Beckley, of this township; Mrs. Sarah L. Christie, of Putnam County, and Clarissa, who died Sept. 21, 1867, in her thirteenth year. Mrs. Underwood died Aug. 13, 1859, aged thirty-three years, and Oct. 28, 1860, Mr. Underwood married Ellie Christie, born Aug. 31, 1832, in Shelby County, Ky., a daughter of William Christie, Sr. She came to this county with her parents, both now deceased, when she was two years of age. One son was born to this union--Marshall C., born in 1863, living at home. Mr. Underwood resides in section 31, where he has one of the finest farms in his neighborhood. His home farm contains 400 acres, the west half of which is in Putnam County. He also owns eighty acres in Putnam County, one and a half miles from his residence. In politics he affiliates with the Democratic party. He and his wife are members of the Regular Baptist church.