- Abad 33
- Abarca 20
- Abate 107
- Abbas 29
- Abbate 47
- Abbey 102
- Abbott 1541
- Abdalla 15
- Abdallah 16
- Abdi 11
- Abdo 26
- Abdullah 30
- Abell 216
- Abercrombie 141
- Abernathy 474
- Abernethy 54
- Abeyta 41
- Ables 78
- Abner 73
- Abney 163
- Abraham 594
- Abrahams 40
- Abrahamson 116
- Abram 78
- Abrams 773
- Abramson 132
- Abrego 19
- Abreu 123
- Abril 13
- Absher 53
- Abshire 52
- Acevedo 312
- Aceves 71
- Acker 334
- Ackerman 882
- Ackerson 53
- Ackley 172
- Acord 53
- Acosta 796
- Acree 66
- Acton 111
- Acuna 106
- Adair 449
- Adamczyk 56
- Adame 65
- Adames 10
- Adamo 84
- Adams 8679
- Adamski 90
- Adamson 399
- Adcock 380
- Addington 111
- Addis 70
- Addison 344
- Addy 34
- Adelman 113
- Aden 26
- Adkins 1948
- Adkison 43
- Adkisson 42
- Adler 658
- Adorno 19
- Agarwal 46
- Agnew 223
- Agosto 24
- Agrawal 27
- Aguayo 76
- Aguero 28
- Aguiar 78
- Aguila 31
- Aguilar 1127
- Aguilera 172
- Aguinaga 6
- Aguirre 549
- Ahearn 164
- Ahern 280
- Ahlers 71
- Ahmad 79
- Ahmed 257
- Aho 83
- Ahrens 362
- Ahumada 32
- Aiello 290
- Aiken 338
- Aikens 56
- Ainsworth 213
- Aitken 101
- Akers 696
- Akhtar 27
- Akin 213
- Akins 331
- Alam 57
- Alamo 11
- Alanis 31
- Alaniz 103
- Alarcon 85
- Alatorre 16
- Albanese 191
- Albano 152
- Albarran 5
- Albaugh 54
- Alber 30
- Albers 374
- Alberti 41
- Alberts 172
- Albertson 255
- Albin 97
- Albino 21
- Albrecht 662
- Albright 826
- Albritton 134
- Alcala 94
- Alcantar 43
- Alcantara 56
- Alcaraz 51
- Alcazar 25
- Alcocer 13
- Alcorn 179
- Alder 41
- Alderete 24
- Alderman 238
- Alderson 134
- Aldrich 509
- Aldridge 604
- Alegria 22
- Alejandre 16
- Alejo 20
- Aleman 124
- Alessi 111
- Alexander 4648
- Alfano 140
- Alfaro 206
- Alford 840
- Alger 146
- Ali 359
- Alicea 61
- Alkire 52
- Alleman 66
- Allen 9194
- Alley 391
- Alleyne 62
- Allgood 104
- Alli 14
- Allison 1510
- Allman 194
- Allmon 54
- Allred 438
- Ally 17
- Almaguer 26
- Almanza 66
- Almanzar 18
- Almaraz 31
- Almazan 20
- Almeida 245
- Almendarez 9
- Almodovar 18
- Almond 146
- Almonte 57
- Alonso 185
- Alonzo 115
- Alpert 108
- Alston 589
- Alsup 58
- Alt 164
- Altamirano 36
- Altieri 73
- Altman 533
- Alvarado 820
- Alvarenga 31
- Alvares 3
- Alvarez 1852
- Alverson 61
- Alves 254
- Alvey 112
- Alvis 52
- Amador 120
- Aman 68
- Amann 57
- Amaral 184
- Amaro 57
- Amato 377
- Amaya 161
- Ambriz 27
- Ambrose 492
- Ambrosio 44
- Amburgey 37
- Amerson 70
- Amezcua 30
- Amezquita 20
- Amick 114
- Amico 44
- Amin 96
- Ammerman 56
- Ammon 46
- Ammons 238
- Amoroso 73
- Amundson 204
- Anaya 115
- Ancheta 26
- Andersen 1185
- Anderson 13137
- Anderton 42
- Andino 34
- Andrade 523
- Andresen 84
- Andress 53
- Andrews 3526
- Andrus 225
- Andujar 17
- Angeles 54
- Angell 204
- Angle 111
- Anglin 224
- Anguiano 82
- Angulo 67
- Angus 85
- Annis 89
- Ansari 40
- Ansley 61
- Antonelli 112
- Antonucci 58
- Antunez 12
- Anzalone 104
- Aparicio 40
- Apodaca 94
- Aponte 91
- Appel 243
- Apple 169
- Appleby 129
- Applegate 341
- Appleton 113
- Applewhite 29
- Appling 30
- Aquino 194
- Aragon 223
- Araiza 30
- Arambula 30
- Arana 60
- Aranda 113
- Arango 30
- Araujo 159
- Araya 10
- Arbogast 112
- Arbuckle 92
- Arce 101
- Arceneaux 88
- Arceo 16
- Archambault 110
- Archer 1048
- Archibald 212
- Archuleta 120
- Arcos 10
- Ardoin 64
- Arellano 280
- Arena 23
- Arenas 44
- Arends 76
- Arens 90
- Arevalo 128
- Argo 72
- Arguelles 34
- Arguello 45
- Argueta 107
- Arias 366
- Arizmendi 8
- Armas 33
- Armbruster 128
- Armendariz 53
- Armenta 54
- Armentrout 72
- Armes 36
- Armijo 52
- Armistead 41
- Armitage 67
- Armour 162
- Arms 76
- Armstead 100
- Armstrong 3411
- Arndt 461
- Arneson 125
- Arnette 33
- Arnold 3875
- Arnone 67
- Arocho 10
- Aronson 200
- Arora 35
- Arredondo 142
- Arreguin 23
- Arreola 89
- Arriaga 79
- Arrieta 27
- Arrington 491
- Arriola 41
- Arrowood 89
- Arroyo 322
- Arruda 83
- Arsenault 253
- Arteaga 80
- Artis 114
- Artz 56
- Arvizu 29
- Arzate 14
- Arzola 15
- Asberry 23
- Asbury 153
- Ascencio 26
- Asencio 16
- Ash 550
- Ashbaugh 55
- Ashby 448
- Ashcraft 260
- Ashe 160
- Asher 314
- Ashford 136
- Ashlock 23
- Ashmore 125
- Ashton 298
- Ashworth 197
- Askew 256
- Astorga 13
- Atchison 160
- Atchley 128
- Atencio 20
- Atherton 157
- Athey 57
- Atkinson 1581
- Attaway 41
- Atwater 75
- Atwell 201
- Atwood 478
- Aubin 63
- Aucoin 105
- Auerbach 69
- Auger 98
- Auguste 17
- Augustine 305
- Auld 51
- Ault 227
- Aultman 23
- Auman 55
- Austin 3104
- Auten 33
- Autrey 65
- Autry 187
- Avalos 153
- Avant 93
- Avelar 34
- Avendano 16
- Avent 21
- Averett 30
- Averill 71
- Avery 1041
- Avila 662
- Aviles 143
- Avilez 7
- Avina 29
- Avitia 12
- Awad 59
- Axtell 47
- Ayala 604
- Aycock 139
- Ayers 1213
- Ayon 19
- Ayotte 73
- Ayoub 35
- Ayres 279
- Azar 58
- Azevedo 87
- Aziz 32
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