Family Search link has more than a dozen source entries for Simpson Dempsey (https://www.familysearch.org/tree/person/details/96TP-G8C?1=1&parents=LJR2-86S_LJR2-8J3)
"Michigan, County Marriages, 1820-1940," database with images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/VNLM-CXW : 4 November 2017), Simpson Dempsey in entry for Delos Dempsey and Lillie Frick Binder, 30 Oct 1889, , Montcalm, Michigan, United States; citing reference ID , various archives, Michigan; FHL microfilm 1,295,521.
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