| Tabor | 125 |
| Tait | 181 182 186 382 |
| Tarrent | 276 |
| Taurman | 495 |
| Taylor | 7 45 47 84 181 186 193 318 368 372 381 382 428 429 448 500 |
| Teigen | 106 |
| Terpstra | 304 |
| Terry | 11 20 |
| Theilman | 71 362 |
| Thistle | 447 |
| Thomas | 7 92 105 136 173 182 324 333 334 381 384 481 513 |
| Thompson | 66 200 243 292 293 299 320 339 372 432 449 472 473 481 495 513 |
| Thomson | 60 |
| Thomy | 415 416 |
| Thornquist | 110 |
| Thornton | 246 |
| Thorsheim | 413 |
| Thorson | 381 |
| Thrall | 331 |
| Tierney | 293 |
| Tietz | 293 |
| Tillett | 414 |
| Timmerman | 416 |
| Tindall | 42 182 183 390 396 |
| Tiseth | 58 |
| Tjintland | 301 |
| Tobias | 252 |
| Tobin | 30 276 |
| Todd | 229 293 |
| Tollefson | 60 |
| Tomlin | 508 |
| Tompson | 163 |
| Tomsu | 283 |
| Toomey | 344 |
| Torarski | 276 |
| Torson | 444 |
| Torstenbo | 495 |
| Toulouse | 357 |
| Town | 344 345 445 446 447 452 |
| Townsend | 7 23 42 67 69 83 107 229 354 359 389 |
| Trafton | 212 |
| Trelour | 206 |
| Trepp | 153 |
| Tresch | 66 444 448 462 1 |
| Trimble | 22 187 291 354 382 391 402 414 |
| Tronsdale | 287 348 349 351 |
| Troriatten | 293 |
| Trotter | 331 |
| Trumer | 107 113 |
| Trusty | 110 119 429 432 445 471 473 474 |
| Tubb | 225 |
| Tucker | 293 391 438 |
| Tuckness | 159 |
| Tull | 165 167 393 |
| Tullis | 92 |
| Tullock | 142 195 503 |
| Tully | 107 111 112 113 423 |
| Tuma | 145 245 293 381 384 |
| Turcotte | 79 159 |
| Turnan | 381 |
| Turnbull | 127 |
| Turner | 92 99 176 223 257 258 264 271 272 302 379 382 390 404 411 414 415 429 474 475 |
| Turpack | 233 |
| Tyler | 7 429 |
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