Dear Nancy, Found a bit of info believe this is your Luther R. Sears ---Farmer in Mouunt Pleasant . Born in Ashfield , Franklin County Mass, 12-9-1811.He came to Racine and 1836 (this was before Wisconsin was a state in 1848)He married to Sophia Hawks, native of Savoy, Mass. A second wife Abby Kirker from Watertown, Mass.Death the 2-21-1903.Buried in Mound Cemetery, Racine WI.Hope this helps.( Also noted birth year as 1811 which is different yet other years fit.) Sears,William and Sears Luther R. made settlement in 1836 in Caledonia Township.