I do believe that this is most likely their cemetery listed, but the year of death is listed as February 1900 instead of February 1901.

Frank H Everson
Birth: 1868
Death: Feb., 1900
Note: age 32y. bur 2/23
Burial:
Manlius Village Cemetery
Manlius
Onondaga County
New York, USA
Plot: Sec 3 Lot 7

Herbert C Everson
Birth: 1872
Death: Feb., 1900
Note: age 28y. bur 2/23
Burial:
Manlius Village Cemetery
Manlius
Onondaga County
New York, USA
Plot: Sec 3 Lot 7