Found these CALVERTs while checking some Guernsey Co, OH sources.
Portrait & Biographical Record of Guernsey Co, OH 1895
p515 - Francis C. CALVERT listed in Co B 1st OH Vol Cav
Marriage Licenses State of Ohio Guernsey Co 1810-32
p86 - Margaret CALVERT married John FARLEY 6 Aug 1818
Cemeteries of Guernsey Co, OH - Wills Tp
p13 - Mary CALVERT 1855-1922
ibid - Madison Tp
p31 - Alvia CALVERT 1871-1947
p31 - Anna Fern CALVERT 1914-41
p43 - Dr. James CALVERT d.20 May 1855 62y
p43 - Francis CALVERT d.5 Aug 1869 41y
p31 - John CALVERT 15 May 1910 - 1 Jul 1909 (?) Pvt US Army WWII
p31 - Lenora CALVERT 1878-1948
p31 - Mable CALVERT 1916-1926
p31 - Martha CALVERT 1907-24
p40 - Martha CALVERT 1900-1983
p43 - Phebe CALVERT d.26 Dec 1848 54y
p31 - Raymond CALVERT 1903-1917
p40 - Wade W. CALVERT 1914-1979
p31,40 = Antrim United Presbyterian Cemetery
p43 = Glenview-Tederick Cemetery
ibid - Liberty Tp
Wanda L. CALVERT 1920 -
Wallace CALVERT 1916 -
both in New Kimbolton Cemetery
ibid - Knox Tp
Josephine CALVERT - dau of Levi & Sarah, NE quad, 1859-76
Levi CALVERT - NE quad, 1825-1907
Sarah CALVERT, wife of Levi, NE quad, 1834-1900
all in Hopewell Cemetery
Guernsey Co, OH Wills & Estates Index 1850-1900
Alfred CALVERT - intestate1897, case8000
James H. CALVERT - intestate 1869, case3049
John CALVERT - will 1853, issue: Charlotte, Martin, case798
History of Guernsey Co, OH v.1 (1911)
p534 Sarah CALVERT wife of Josepha DURANT, dau Mary E. married 1900.
Atlas of Guernsey Co, OH 1870
p44 - L. CALVERT p45 - J. CALVERT