In the book " Etched in Stone in Sidney " by Shirley Boyce Goerlich . Prospect Hill Cemetery COLLAR Milton C., 1854 - 1924 Annie E. Babcock, his wife, 1858 - 1885 Mary E. Dunlap, his wife, 1855 - 1914 Frank M., 1885 - 1938
Collar(monument) Amanda, 1848 - 1917 H.S. , n.d. Celestia E., his wife, died Jan. 7, 1885 age 80 yrs. S.A. died 1880 (?) Catherine S., his wife, died 1889 (?) ae 81 yrs. (?)
I believe the H.S. is Milton's brother Harvey . Age for Celestia must be incorrect , In 1880 census she is age 35. By 1900 Afton, Chenango Co. census Harvey(59) is married to a Jennie M.(38).
Also from the book , section titled ; Sexton's Records for Prospect Hill Cemetery .