I'm hunting for Alvin with a son Everett - I think I've found him. Born in Indiana. Wife Anna R. Son of William and Margaret.
"United States Census, 1880," database with images, FamilySearch(https://familysearch.org/ark:/61903/1:1:MHMJ-6G1 : 12 August 2016), Alvin Prather in household of William Prather, Utica, Clark, Indiana, United States; citing enumeration district ED 36, sheet 279B, NARA microfilm publication T9 (Washington D.C.: National Archives and Records Administration, n.d.), roll 0269; FHL microfilm 1,254,269.
"United States Census, 1900," database with images, FamilySearch(https://familysearch.org/ark:/61903/1:1:MMBJ-P52 : accessed 2 August 2017), Alvin Prather in household of Margaret Prather, Utica Township, Clark, Indiana, United States; citing enumeration district (ED) 20, sheet 9B, family 197, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,240,363.
"United States Census, 1910," database with images, FamilySearch(https://familysearch.org/ark:/61903/1:1:MKGW-647 : accessed 2 August 2017), Alvin Prather, Utica, Clark, Indiana, United States; citing enumeration district (ED) ED 23, sheet 5A, family 99, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 342; FHL microfilm 1,374,355.
"United States Census, 1910," database with images, FamilySearch(https://familysearch.org/ark:/61903/1:1:MKGW-6HR : accessed 2 August 2017), Alvin Prather, Utica, Clark, Indiana, United States; citing enumeration district (ED) ED 23, sheet 5A, family 99, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 342; FHL microfilm 1,374,355.
"United States Census, 1930," database with images, FamilySearch(https://familysearch.org/ark:/61903/1:1:X41B-P52 : accessed 2 August 2017), Alvin Prather, Utica, Clark, Indiana, United States; citing enumeration district (ED) ED 23, sheet 9B, line 95, family 74, NARA microfilm publication T626 (Washington D.C.: National Archives and Records Administration, 2002), roll 580; FHL microfilm 2,340,315.
"United States Census, 1940," database with images, FamilySearch(https://familysearch.org/ark:/61903/1:1:V1RZ-KGX : accessed 2 August 2017), Alvin Prather, Gibson, Utica Township, Clark, Indiana, United States; citing enumeration district (ED) 10-30, sheet 11A, line 6, family 222, Sixteenth Census of the United States, 1940, NARA digital publication T627. Records of the Bureau of the Census, 1790 - 2007, RG 29. Washington, D.C.: National Archives and Records Administration, 2012, roll 1031.