| Badger | 48 |
| Bailey | 277 376 |
| Baker | 5 22 72 96 99 101 109 130 215 252 255 256 257 269 270 271 300 301 347 372 428 432 459 480 486 |
| Baksah | 80 82 |
| Baldwin | 293 |
| Balk | 480 |
| Ball | 453 |
| Ballard | 293 |
| Ballinger | 61 |
| Balsom | 396 |
| Bancraft | 293 |
| Bancroft | 291 |
| Barbee | 199 280 293 300 340 |
| Barber | 244 |
| Barchardine | 99 |
| Barclay | 47 |
| Bare | 59 78 79 141 143 177 247 248 279 281 308 336 381 420 481 |
| Barnett | 382 393 402 |
| Barney | 23 101 289 293 313 338 |
| Barnhill | 182 |
| Barns | 495 |
| Barnum | 455 |
| Barrels | 232 |
| Barrett | 469 486 |
| Barron | 228 |
| Barrows | 427 |
| Barsness | 46 293 |
| Barta | 143 284 307 |
| Bartlett | 5 429 |
| Batdorf | 494 |
| Baucke | 30 172 177 178 255 340 358 382 432 444 445 452 455 |
| Baulch | 194 381 |
| Bauman | 178 230 276 290 292 418 419 420 426 427 512 |
| Bawden | 129 |
| Baxter | 70 |
| Beal | 145 152 193 231 232 245 313 381 417 420 |
| Beam | 79 |
| Bean | 22 27 390 391 393 394 |
| Beatty | 54 78 157 158 285 324 381 382 401 512 |
| Beaupre | 187 |
| Beaver | 293 |
| Bechand | 327 |
| Beck | 41 92 94 95 96 97 99 217 241 272 432 436 |
| Beckler | 446 |
| Becraft | 47 |
| Bedlan | 92 117 124 129 |
| Bednash | 320 |
| Beebee | 438 |
| Beedy | 227 229 235 239 242 245 |
| Beer | 06 |
| Beerman | 187 |
| Beetle | 293 |
| Beis | 512 |
| Belden | 309 |
| Bell | 17 34 149 179 300 381 432 447 448 476 |
| Belles | 412 |
| Belyea | 381 429 431 432 439 |
| Benda | 328 |
| Bendova | 328 |
| Benes | 115 128 247 381 488 |
| Benish | 128 |
| Bennett | 182 381 487 |
| Bennyhoff | 233 |
| Bent | 21 |
| Benton | 463 |
| Berg | 287 288 301 302 331 419 |
| Bergerson | 293 |
| Bergum | 293 |
| Berrigan | 142 |
| Berry | 241 |
| Berryman | 293 |
| Bessire | 276 293 |
| Beuchner | 232 |
| Beuchner | 359 |
| Beverly | 173 |
| Bevis | 28 230 394 395 398 406 411 |
| Bezouska | 116 |
| Bialek | 367 |
| Bickler | 233 |
| Biddison | 58 |
| Bidwell | 293 |
| Bielefield | 276 |
| Bies | 293 |
| Biggerstaff | 47 48 49 54 210 328 356 |
| Biggs | 238 499 |
| Bilgrien | 123 155 176 195 217 276 302 325 381 384 |
| Bingman | 100 107 |
| Birch | 293 |
| Bird | 447 |
| Birdwell | 18 30 217 478 479 496 |
| Bischoff | 103 159 279 303 325 |
| Bishop | 66 86 202 276 303 304 336 337 365 380 382 383 486 498 |
| Bittison | 452 |
| Bjustrom | 297 |
| Bjustron | 293 |
| Blaha | 252 |
| Blaine | 258 395 |
| Blair | 67 89 118 154 279 391 418 447 448 |
| Blais | 373 442 |
| Blakemore | 7 325 382 |
| Blanchard | 49 158 161 271 302 |
| Blank | 240 245 415 |
| Blatter | 478 |
| Bleason | 168 |
| Bleckel | 48 |
| Blizzard | 58 59 |
| Blodgett | 493 |
| Blum | 228 237 245 |
| Blumfield | 279 |
| Bob, Panhandle | 9 |
| Bobenmoyer | 114 |
| Boggers | 308 |
| Bolter | 287 |
| Boneff | 407 408 |
| Bonine | 168 |
| Bonnesen | 493 |
| Bonneson | 212 381 |
| Bontrager | 97 202 224 |
| Booth | 388 |
| Bosche | 308 |
| Boschee | 499 |
| Boseth | 92 |
| Bosier | 5 |
| Bottleson | 163 |
| Bourdon | 429 |
| Bourke | 233 442 |
| Bourke, Pick Handle | 4 |
| Bowen | 145 |
| Bower | 388 |
| Bowers | 98 |
| Bowland | 293 |
| Bowman | 109 245 414 |
| Bowser | 5 70 178 281 282 292 297 299 311 320 331 335 339 382 384 413 442 481 495 506 512 |
| Boyed | 445 |
| Boyes | 344 |
| Bozarth | 189 |
| Bradbury | 21 |
| Brading | 393 |
| Bradley | 176 |
| Brady | 404 |
| Braford | 454 455 |
| Braiser | 42 83 100 101 102 104 105 107 109 110 114 224 281 324 339 372 418 442 505 506 507 |
| Brandmeir | 289 |
| Brandmeter | 380 |
| Brannon | 430 431 |
| Brase | 381 |
| Brassey | 287 |
| Bratt | 105 |
| Bray | 190 |
| Breckenridge | 382 |
| Bremner | 61 65 |
| Brennan | 396 454 |
| Bright | 165 |
| Brilliant | 241 |
| Brimer | 27 135 |
| Briody | 160 |
| Britzius | 156 311 |
| Broadwater | 11 428 |
| Brockway | 37 454 |
| Brooks | 30 48 69 393 413 414 416 472 512 |
| Brown | 48 70 71 178 228 229 230 281 293 314 364 382 384 438 460 467 488 505 508 509 512 |
| Brownie | 502 |
| Brownlee | 228 229 234 |
| Brox | 349 |
| Bru | 224 367 |
| Brubrew | 293 |
| Bruce | 94 |
| Bruckert | 64 |
| Brumfield | 378 429 439 447 448 452 |
| Bryce | 176 |
| Bryse | 305 |
| Bucher | 66 455 |
| Buck | 236 254 255 266 381 502 |
| Budweiser | 391 |
| Buechner | 137 252 304 305 308 376 478 |
| Buffington | 153 |
| Bugard | 2 62 |
| Bulfinch | 186 |
| Bullis | 225 |
| Bullock | 83 |
| Bunn | 453 |
| Bunnell | 391 416 |
| Bunsworth | 288 |
| Bunt | 427 |
| Burbridge | 158 |
| Burch | 90 |
| Burgeson | 293 |
| Buric | 249 |
| Burk | 47 68 101 241 |
| Burke | 293 408 |
| Burkettes | 107 |
| Burleigh | 501 |
| Burnett | 31 89 90 99 190 193 281 305 381 512 |
| Burnham | 165 |
| Burns | 12 293 300 |
| Bursmey | 101 |
| Burtch | 454 |
| Burton | 509 512 |
| Busby | 395 398 |
| Busenbark | 382 391 395 396 414 512 |
| Bushman | 99 252 256 |
| Busick | 254 |
| Busse | 247 248 |
| Bussey | 47 54 |
| Buswell | 293 |
| Butler | 63 76 302 |
| Butterfield | 49 483 |
| Buttke | 469 488 |
| Butts | 59 |
| Byholt | 381 |
| Bynum | 415 |
| Byrne | 4 47 181 281 360 368 382 384 500 504 512 |
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