| Mabee | 70 92 282 283 299 359 381 468 480 490 |
| Maberry | 47 48 |
| Mabry | 493 |
| MacDonald | 22 |
| Mace | 241 464 |
| Mach | 359 |
| Machler | 30 66 203 260 268 340 445 448 452 461 462 473 503 |
| MacKenzie | 430 |
| Mackie | 267 |
| MacKinzie | 293 |
| Madison | 114 336 422 |
| Madson | 276 |
| Maher | 47 473 |
| Main | 293 |
| Major | 406 |
| Maley | 359 |
| Malmend | 513 |
| Malone | 187 262 |
| Mangle | 217 |
| Mann | 78 337 |
| Manning | 30 34 47 340 447 448 449 462 |
| Manseka | 237 |
| Marcott | 273 |
| Marcotte | 169 264 273 432 463 |
| Marek | 125 |
| Marinoff | 399 407 408 |
| Maris | 293 |
| Markin | 293 |
| Marlow | 39 |
| Marr | 394 407 408 |
| Marsch | 377 442 |
| Marsh | 8 22 23 30 77 100 107 109 220 223 276 277 282 285 286 293 296 312 314 318 319 337 338 342 370 381 382 408 409 413 424 425 427 429 440 489 490 |
| Marshall | 22 49 84 93 252 256 258 261 270 280 288 388 394 415 436 |
| Marso | 72 194 496 506 |
| Martin | 21 54 59 78 79 122 123 136 213 227 233 234 235 236 240 242 243 254 281 292 331 339 372 378 381 382 402 422 513 |
| Martindale | 227 238 |
| Martinec | 123 129 130 136 139 140 325 339 381 382 395 471 |
| Martinson | 223 |
| Marty | 405 |
| Martz | 293 381 409 |
| Maruska | 116 123 131 135 215 279 283 284 292 293 304 353 382 384 395 439 513 |
| Marvis | 293 |
| Masek | 280 |
| Massey | 64 |
| Matejek | 130 |
| Mather | 99 |
| Mathern | 103 |
| Matheson | 34 373 |
| Mathews | 22 47 153 218 |
| Mathison | 22 23 41 86 212 241 266 267 273 276 280 309 311 319 359 381 429 436 437 438 476 |
| Matlock | 101 |
| Matovich | 446 464 513 |
| Matrom | 276 |
| Matthews | 293 441 442 446 463 464 |
| Mauland | 30 41 99 378 379 380 381 382 383 429 432 436 443 448 456 468 472 |
| Maurer | 46 |
| Maury | 59 65 155 291 |
| Maxfield | 279 444 |
| Maxwell | 315 |
| May | 66 166 |
| Mayberry | 34 84 92 118 300 340 448 462 491 503 |
| McAlister | 35 |
| McAlpine | 445 452 464 |
| McArthur | 89 382 |
| McArthur | 268 |
| McArty | 176 340 |
| McAuley | 288 381 |
| McBride | 274 |
| McBurney | 47 54 |
| McCain | 34 152 215 288 293 321 327 333 341 342 390 498 511 |
| McCandless | 83 84 |
| McCarthy | 33 352 |
| McCartney | 418 |
| McCarty | 128 319 |
| McCauley | 151 |
| McChesney | 467 |
| McClain | 242 293 |
| McClay | 11 |
| McCloud | 99 478 |
| McCloy | 293 |
| McClure | 236 |
| McCollum | 47 211 293 511 |
| McConnell | 384 |
| McConochie | 347 |
| McCoy | 232 |
| McCracken | 258 |
| McCrary | 218 |
| McCrery | 357 |
| McCue | 188 502 |
| McCullen | 73 287 |
| McCullough | 4 49 |
| McDaniel | 418 |
| McDaniels | 391 |
| McDermott | 293 388 |
| McDonald | 1 21 66 150 210 194 195 311 382 431 432 462 496 |
| McDowell | 389 509 |
| McElvain | 504 |
| McElwee | 99 |
| McEneaney | 63 155 392 |
| McEneany | 388 |
| McEvony | 191 480 |
| McFadden | 166 |
| McGarth | 502 |
| McGinnis | 114 426 452 464 465 |
| McGlothlin | 201 |
| McGuffin | 450 |
| McGuire | 82 331 435 |
| McIntosh | 80 445 |
| McKay | 195 241 |
| McKellar | 293 |
| McKenna | 347 |
| McKenzie | 119 |
| McKerlie | 60 157 161 |
| McKevin | 226 |
| McKinley | 293 513 |
| Mclaughlin | 41 185 311 344 387 393 |
| McLendon | 165 |
| McLeoud | 293 |
| McMillan | 153 501 |
| McNamara | 39 187 |
| McNees | 495 |
| McNeil | 79 85 87 114 237 238 239 293 296 499 |
| McNulty | 30 41 168 213 316 351 360 381 383 384 429 448 449 450 460 461 465 466 468 472 513 |
| McObes | 381 |
| McPhee | 84 |
| McReynolds | 65 |
| McVey | 118 213 245 257 293 335 |
| McWirk | 314 |
| Mead | 229 239 384 414 |
| Meadors | 481 |
| Mecham | 340 |
| Meckling | 90 292 382 468 469 512 |
| Medek | 215 225 |
| Meisser | 91 |
| Melbourne | 153 |
| Meridith | 293 |
| Meska | 221 |
| Meske | 211 |
| Messenger | 28 41 229 325 384 391 394 398 409 410 |
| Messier | 182 398 409 |
| Mettier | 203 226 |
| Meyers | 381 423 |
| Michel | 293 |
| Mikami | 502 513 |
| Mikel | 454 |
| Miller | 33 34 57 67 69 84 88 96 99 176 186 227 237 239 240 257 266 293 309 317 320 343 381 401 450 466 476 503 513 |
| Mills | 247 |
| Minette | 293 |
| Minter | 410 |
| Misener | 185 |
| Miskovsky | 307 |
| Misner | 155 455 |
| Mitchell | 47 282 474 490 |
| Mitten | 60 61 182 310 314 381 384 |
| Moberley | 195 496 |
| Mock | 477 |
| Moleson | 293 |
| Moltzau | 173 182 183 324 |
| Molyneaux | 275 |
| Monroe | 168 429 |
| Monson | 293 |
| Montang | 303 321 340 344 495 |
| Montgomery | 65 68 71 148 292 293 382 384 415 509 513 |
| Mooney | 377 |
| Moore | 105 151 169 174 220 247 293 367 381 428 |
| Moran | 429 |
| Morase | 467 |
| Moravac | 307 |
| Moravek | 120 |
| Morford | 431 |
| Morgan | 79 201 252 293 300 319 448 |
| Morin | 159 |
| Moritz | 293 |
| Morken | 377 |
| Morrison | 416 |
| Morrissy | 425 |
| Mortensen | 162 |
| Morton | 348 349 |
| Mosby | 75 292 382 |
| Moseman | 321 |
| Mouchkas | 439 |
| Moucka | 283 381 490 492 |
| Moulton | 188 |
| Mount | 159 |
| Moyer | 67 170 344 466 498 |
| Muir | 95 |
| Mullet | 513 |
| Munger | 288 |
| Murphy | 6 27 41 47 75 77 84 92 103 140 154 174 195 203 229 230 271 281 285 286 291 293 316 324 340 344 345 346 356 362 363 365 370 381 394 429 447 493 503 513 |
| Murray | 28 147 194 201 293 490 491 492 509 |
| Muschbacker | 110 283 346 347 382 |
| Museck | 347 |
| Musek | 287 371 |
| Mussellman | 98 216 269 |
| Myers | 41 84 85 110 114 142 145 227 229 243 276 285 381 382 399 417 426 438 451 485 486 495 |
| Myklegard | 293 |
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