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Surname
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Region | Book Title | Catalog # | Notes |
| | Copes | Somerset | MD | Colonial Families of the Eastern Shore of MD, Vol. 12 | D011 |
| | Copes | Worcester | MD | Colonial Families of the Eastern Shore of MD, Vol. 12 | D011 |
| | Copher | Southside | VA | Southside Virginia Families, Vol. 2 | CC532 |
| | Coppedge | Kent | MD | Colonial Families of the Eastern Shore of MD, Vol. 21 | D1224 | Revised from Vol 2 |
| | Coppedge | Kent | MD | Colonial Families of the Eastern Shore of MD, Vo1. 2 | D1238 |
| | Coppen | Cecil | MD | Colonial Families of the Eastern Shore of MD, Vol. 6 | D1958 |
| | Copper | Kent | MD | Colonial Families of the Eastern Shore of MD, Vo1. 2 | D1238 |
| | Corbet | Kent | MD | Colonial Families of Delaware, Vol. 2 | D7398 |
| | Corbet | New Castle | DE | Colonial Families of Delaware, Vol. 2 | D7398 |
| | Corbet | Pennsylvania | PA | Welsh Founders of Pennsylvania | CC2230 |
| | Corbin | Caroline | VA | History of Caroline County, Virginia | WB0938 |
| | Cord | Somerset | MD | Colonial Families of the Eastern Shore of MD, Vol. 12 | D011 |
| | Cord | Sussex | DE | Colonial Families of Delaware, Vol. 3 | D7609 |
| | Cord | Sussex | DE | Colonial Families of the Eastern Shore of MD, Vol. 12 | D011 |
| | Cord | Worcester | MD | Colonial Families of the Eastern Shore of MD, Vol. 12 | D011 |
| | Cordell | Virginia | VA | Virginia Genealogies | CC2630 |
| | Cordry | Somerset | MD | A Somerset Sampler, Families of Old Somerset Co. MD | L002 |
| | Cordry | Sussex | DE | A Somerset Sampler, Families of Old Somerset Co. MD | L002 |
| | Cordry | Wicomico | MD | A Somerset Sampler, Families of Old Somerset Co. MD | L002 |
| | Corker | Southside | VA | Southside Virginia Families, Vol. 1 | CC531 |
| | Corkerin | Queen | MD | Colonial Families of the Eastern Shore of MD, Vol. 5 | D1956 |
| | Corkerin | Talbot | MD | Colonial Families of the Eastern Shore of MD, Vol. 5 | D1956 |
| | Corne | Pennsylvania | PA | Welsh Founders of Pennsylvania | CC2230 |
| | Cornelius | Kent | MD | Colonial Families of the Eastern Shore of MD, Vol. 3 | D1302 |
| | Cornish | Charles | MD | Early Families of Southern Maryland, Vol. 9 | WB0106 |
| | Cornish | Virginia | VA | Virginia Historical Genealogies |
| | Cornwallis, Thomas | St. Mary's | MD | The Ark and the Dove Adventurers |
| | Corse | Kent | MD | Colonial Families of the Eastern Shore of MD, Vo1. 2 | D1238 |
| | Corson | Cape May | NJ | Colonial Families of Cape May, NJ | D048 |
| | Cosad | New Jersey | NJ | The Early Germans of New Jersey | CC940 |
| | Costen | Somerset | MD | A Somerset Sampler, Families of Old Somerset Co. MD | L002 |
| | Cottingham | Kent | DE | Colonial Families of the Eastern Shore of MD, Vol. 17 | D120 |
| | Cottingham | Somerset | MD | Colonial Families of the Eastern Shore of MD, Vol. 17 | D120 |
| | Cottingham | Sussex | DE | Colonial Families of the Eastern Shore of MD, Vol. 17 | D120 |
| | Cottingham | Worcester | MD | Colonial Families of the Eastern Shore of MD, Vol. 17 | D120 |
| | Cottman | Somerset | MD | A Somerset Sampler, Families of Old Somerset Co. MD | L002 |
| | Cottman | Wicomico | MD | A Somerset Sampler, Families of Old Somerset Co. MD | L002 |
| | Cotton | Tidewater | VA | Tidewater Virginia Families | G1382 |
| | Coudrat | Kent | DE | Colonial Families of Delaware, Vol. 6 | D085 |