Even W Ayres is buried in Custer Cemetery in SD. He was born 1833 and died 1919. This is the information I have off of his headstone.
Francis Marion Ayres my ggg grandfather born 12-06-1842 (according to his headstone) died 07-15-1915 married 05-04-1865 to Josephine A Keller born 01-15-1843 died 07-11-1926. Their children, all born in Humansville, were: Mary A Ayres born about 1866, Elisa A Ayres born about 1868, Francis Pinkney Ayres my gg grandfather born 08-15-1869 died 04-09-1951, James M Ayres born 1880 died 1946 (I have a picture of his headstone) and Birdella A Ayres born 04-28-1874 died 03-29-1960 in Caldwell Canyon, ID
Francis Pinkney Ayres married 11-10-1892 Almyra Richardson born 08-21-1874 died 10-21-1915. Their children, I believe they were all born in SD, Adeline Josephine Ayres born 06-1894, James Alonzo Ayres born 06-15-1897 died 1949 (I have a picture of this headstone), Arthur Francis Ayres my great grandfather, born 02-17-1900 died 06-26-1964, Alvin Ayres born 03-02-1903 and Mary Birdella Ayres born 03-01-1907.
Arthur Francis Ayres married (date unknown) Sarah Pearl Goding born 1902 died 1991 They divorced and Sarah Pearl remarried while Arthur lived with his significant other.They had 2 daughters Lucille Almyra Ayres my grandmother born 05-16-1923 died 04-19-2001 and Shirley Ann Ayres born 03-06-1927 died 1993.
Lucille Almyra Ayres married 11-21-1941 Warren Grant Reder born 01-03-1922 died 02-11-1996 and they had four children.
Shirley Ann Ayres married (date unknown) Robert Harold Corkle (still living) and they had 1 daughter.
If you would like to know more on the living relatives you can email me at firstname.lastname@example.org and we can discuss more in private.I hope this information helps.I do have several more headstone photos from the cemeteries in SD that are Ayres and a few other names that married Ayres girls.Please let me know what else I can help you with.