Dear Pam, knowing you're primarily seeking Alfred Calvert, the following is available at ancestry.com for his household in Madison Twp., Guernsey County, Ohio for 1850. (He is also listed as Alford for 1851, but I did not check that one.I will and let you know if there are any changes from below.)His name is spelled ALFORD Calvert in this census.He is 22, m, a blacksmith, born in Ohio.
Wife Casandra (spelled one "s" in 1850 and 1860), 25 (age difference now - see 1860), f, b. Ohio.
Mary E., 9, f, b. Ohio
Sarah C., 6, f, b. Ohio
Hannah M., 4, f, b. Ohio
Nancy A., 2, f, b. Ohio
Aaron Browning, 16, m, b. Ohio, student
There are also a John Calvert and a Jackson Calvert in Jefferson Twp., Guernsey Co., in 1850 and 1851.
There are a William Calvert and a Mary Calvert in Liberty Twp., Guernsey Co., in 1850 and 1851.
Also in Madison Twp., Guernsey Co., there is a Francis C. Calvert in 1850 and 1851.