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Surname
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Region | Book Title | Catalog # | Notes |
| | Tunis | Dorchester | MD | Colonial Families of the Eastern Shore of MD, Vol. 16 | D057 |
| | Turbutt | Queen | MD | Colonial Families of the Eastern Shore of MD, Vol. 4 | D1498 |
| | Turbutt | Talbot | MD | Colonial Families of the Eastern Shore of MD, Vol. 4 | D1498 |
| | Turley | Kent | DE | Colonial Families of Delaware, Vol. 6 | D085 |
| | Turner | Anne Arundel | MD | Early Families of Southern Maryland, Vol. 7 | WB1616 |
| | Turner | Calvert | MD | Early Families of Southern Maryland, Vol. 7 | WB1616 |
| | Turner | Camden | NJ | First Immigrant Settlers of Newton Township, Old Gloucester Co. West New | CC9751 |
| | Turner | Charles | MD | Early Families of Southern Maryland, Vol. 7 | WB1616 |
| | Turner | Northampton | VA | Colonial Families of the Eastern Shore of MD, Vol. 22 | D1225 |
| | Turner | Prince | MD | Early Families of Southern Maryland, Vol. 7 | WB1616 |
| | Turner | Queen | MD | Colonial Families of the Eastern Shore of MD, Vol. 4 | D1498 |
| | Turner | Somerset | MD | Colonial Families of the Eastern Shore of MD, Vol. 22 | D1225 |
| | Turner | Somerset | MD | Colonial Families of the Eastern Shore of MD, Vol. 20 | D1223 |
| | Turner | St. Mary's | MD | Early Families of Southern Maryland, Vol. 7 | WB1616 |
| | Turner | Talbot | MD | Colonial Families of the Eastern Shore of MD, Vol. 4 | D1498 |
| | Turner | Talbot | MD | Early Families of Southern Maryland, Vol. 7 | WB1616 |
| | Turner | Virginia | VA | Virginia Genealogies | CC2630 |
| | Turpin | Dorchester | MD | Colonial Families of the Eastern Shore of MD, Vol. 8 | D1960 |
| | Turpin | Somerset | MD | Colonial Families of the Eastern Shore of MD, Vol. 8 | D1960 |
| | Turville | Somerset | MD | Colonial Families of the Eastern Shore of MD, Vol. 22 | D1225 |
| | Tutwiler | Rockingham | VA | Men of Mark & Repres. Citizens of Harrisonburg & Rockingham Co. VA | CC9574 |
| | Twyford | Dorchester | MD | Colonial Families of the Eastern Shore of MD, Vol. 13 | D027 |
| | Tyas/Tyus | Southside | VA | Southside Virginia Families, Vol. 2 | CC532 |
| | Tybout | Kent | DE | Colonial Families of Delaware, Vol. 2 | D7398 |
| | Tydings | Anne Arundel | MD | Colonial Families of Anne Arundel County, MD | D1252 |
| | Tyer | Southern | MD | Early Families of Southern Maryland, Vol .4 | WB1035 |
| | Tyler | Somerset | MD | Colonial Families of the Eastern Shore of MD, Vol. 12 | D011 |
| | Tyler | Southern | MD | Early Families of Southern Maryland, Vol. 5 | WB1249 |
| | Tyler | Virginia | VA | Virginia Genealogies | CC2630 |
| | Tyler | Worcester | MD | Colonial Families of the Eastern Shore of MD, Vol. 12 | D011 |
| | Tylor | Somerset | MD | Colonial Families of the Eastern Shore of MD, Vol. 12 | D011 |
| | Tylor | Worcester | MD | Colonial Families of the Eastern Shore of MD, Vol. 12 | D011 |
| | Tyrus | Southside | VA | Southside Virginia Families, Vol. 1 | CC531 |
| |
Underwood | Dorchester | MD | Colonial Families of the Eastern Shore of MD, Vol. 14 | D040 |
| | Underwood | Westmorelan | VA | Colonial Families of Northern Neck, Vol. 2 | D1988 |
| | Upshott | Worcester | MD | A Somerset Sampler, Families of Old Somerset Co. MD | L002 |
| | Upshurr | Worcester | MD | A Somerset Sampler, Families of Old Somerset Co. MD | L002 |
| | Usilton | Queen | MD | Colonial Families of the Eastern Shore of MD, Vol. 4 | D1498 |
| | Usilton | Talbot | MD | Colonial Families of the Eastern Shore of MD, Vol. 4 | D1498 |