b. 1814
| Birth* | Mary Catharine Roberts was born in 1814. |
| Marriage* | She married James G Deem Sr, son of Jacob Deem and Mary Catherine Lazure, on 4 February 1837 at Oxbow, Ritchie County, (W)VA; Minister Benjamin Hardman.1  |
| Census | Mary Catharine Roberts and James G Deem Sr appeared on the census of 1850 at Western District, Ritchie County, (W)VA; James G. Deem 34 farmer, Mary Deem 33, Mary Deem 13, Lucinda Deem 11,
John Deem 9, George Deem 7, Eliza Deem 5, Susanna Deem 3, Jeremiah Deem 1.2  |
| Census* | Mary Catharine Roberts and James G Deem Sr appeared on the census of 1860 at Ritchie County, (W)VA; James Deem 42 farmer, Mary Deem 39, Mary E Deem 22 househand, Lucinda Deem 20 househand, John Deem 19 farmhand, Geo W Deem 17 farmhand, Eliza J Deem 15 househand, Susanah Deem 14, Jeremiah Deem 12, Margaret A Deem 9, James Deem 6, Charity A Deem 3 Isaac M A Deem 3.3   |
| Census* | Mary Catharine Roberts appeared on the census of 1870 at Murphy Township, Ritchie County, WV; Mary Deem 60 keeping house, Susannah Deem 20, James Deem 17, Charity Deem 14, Benjamin Deem 7.4  |