You may have this information, but I thought I'd pass it along just in case. Sorry, I cannot provide information on the Carrolls.
Source: The Underwood Families of America, Vol II, 1913 compiled by Lucien Marcus Underwood, edited by Howard J. Banker.
Ada born 6 May, 1880 m. 22 March 1899 Charles Carroll had three children: 1) Oliver Carroll, b. 10 Feb., 1900 2) Mathew Carroll, b. 19 Mar., 1902 3) Muriel Carrol, b. 30, Nov. 1908
Ada is the daughter of Daniel Underwood of La Veta, Colorado., (son of James) born 7 Feb., 1840 Rockville, Ind.; m. 3 Feb., 1867, Lenora Perry, b. 1 Jan., 1848, and has four children. 1) Ivan 2) Bertha 3) ADA UNDERWOOD CARROLL 4) Asa