My great great grandfather was Samuel Boucher Mummert, born 22 July 1830 in Cashtown, PA.His parents were Samuel Mummert (b. ca 30 Nov. 1805 in Adams County, PA and d. 8 June 1878 in Freedom Twnp., Carroll Co., IL) and Elizabeth Boucher (b. 17 March 1805 in PA. and d. after 1880 presumably in Illinois.)
Samuel B. m. first Ascena Nelson 20 Sept. 1854 in Hampshire Co. or Frederick Co., VA (later WV).
Samuel B. m. second Sarah Margaret Barrett 29 April 1862 in Frederick Co., VA.Their fourth child was Jerome Theodore Mummert, b. 7 July 1870 in Freedom Twnsp., Carroll Co., IL.
Is this your Jerome?
Samuel B. d. 30 Nov. 1900 in Freedom Twnp., Carroll Co., IL