Katherine (our spelling) "Kitty" SULLIVAN b. 17 Jan 1884 Custer Co. NE. - d. 22 Mar 1966 Loup City, Sherman Co. NE. married William Bradley ROTH (b. 11 Nov 1878 Brocton, Edgar Co. IL. - d. 28 Feb 1959 Custer Co.) on 24 Apr 1907 in Ashton, Sherman Co. NE. William was my grandfather's brother. William & Kitty are both buried in St. Mary's Cemetery (1/2 mile north of Sargent)
I don't know anything about the SULLIVANs but I forwarded your query to William's granddaughter, Margaret. She may be able to answer your query.