In 1981, the late Paul Souder, husband of Mariquita Calvo Torres, published Familian Chamorro. This publication features family genealogy sourced from early Spanish records including the 1897 Spanish census, Father Roman de Vera’s 1920 census, and personal interviews he conducted with some Guam elders. This publication contains over 500 pages of CHamoru genealogical information, and at least 294 surnames. Souder acknowledges that his work in this publication is not complete, but clearly, his work is an absolutely amazing resource and inspiration to many seeking to discover their roots.
| Acosta | Guitongguiko (Quitonguico) | Quenga |
| Ada | Gumataotao | Quichocho |
| Adriano | Gutierrez | Quidachay |
| Aflague | Guzman | Quifunas |
| Aguahlo (Agualo) | Hanggwe (Hong Yee) | Quinata |
| Aguero | Hara | Quintanilla |
| Aguigui | Hernandez | Quitaro |
| Aguon | Herrero | Quitugua |
| Alig | Ibanez | Ramirez |
| Alvarez | Ichihara | Rabon |
| Angeles | Iglesias | Ramos |
| Anderson | Ignacio | Respicio |
| Angoco | Indalecio | Reyes |
| Anyu | Irriarte (Iriarte) | Rios |
| Aquiningoc | Isidro | Rivera |
| Aquino | Isizaki (Ishizaki) | Roberto |
| Arceo | Jackson | Robat |
| Arriola | Javier | Rodriguez |
| Asuncion | Jesus | Roajs |
| Atao | Kaminga | Romero |
| Atoigue | Kitandiko | Rosa |
| Babauta | Kiga | Rosario |
| Balajadia | Lago | Rosendo |
| Bamba | Laguana | Rupley |
| Barcina | Laparo | Sablan |
| Bautista | Lapaya | Salas |
| Bayona | Lazaro | Sahagan (Sahagon) |
| Baza | Leady (Leddy) | San Agustin |
| Benavente | Leon | Sanchez |
| Bernardo | Leon Guerrero | San Luis |
| Bitanga | Limtiaco | San Miguel |
| Blanco | Lizama | San Nicolas |
| Blas | Lujan | Santos |
| Bordallo | Lusano | Sarmiento |
| Borja | Lutab | Sayama |
| Bosco (Basco) | Lorenzo | Schnabel |
| Cabo | Lucero | Sgambelluri |
| Cabrera | Maanao | Shemoda |
| Calvo | Maglona (Manglona) | Shimizu |
| Camacho | Mafnas | Siguenza |
| Campos | Magna | Sobeta |
| Candaso | Manalisay | Sokoko |
| Carbullido | Manibusan | Sopingco |
| Cardenas | Mantanona | Soriano |
| Castro | Mendicey | Suarez |
| Cepeda | Marcelo | Tagasi |
| Charfauros | Mapan | Taguacta |
| Chatsagua | Mariano | Taijeron |
| Chuapako (Champaco) | Martinez | Taijito |
| Cleofas | Matanane | Taimanglo |
| Chargulaaf | Mateo | Taisague |
| Concepcion | Materne | Taisipec (Taisipic) |
| Cortes | Megofna | Taitano |
| Crisostomo | Mendiola | Taitingfong |
| Crusat (Cruzar) | Meno | talavera |
| Cruz | Merfalen | Tanaka |
| Delgado | Mesa | Takano |
| De Leon | Millinchamp | Tass |
| Deza | Miner | Tejada |
| Diaz | Munoz | Tejerie (Techaira) |
| Dinapan (Dimapan) | Muna | Terlaje |
| Duarte | Namauleg | Tinatongo (Tainatongo) |
| Duenas | Naputi | Tello |
| Dungca | Nauta | Tenorio |
| Dydasco | Navarro | Tertaotao (Tedtaotao) |
| Eclavea | Nego | Tishima |
| Enchanco (Unchangco) | Nelson | Tolentino |
| Espinosa | Nededog | Torre |
| Espiritu Santo | Ninaisen | Torres |
| Esteban | Ninete | Toves |
| Eustaquio | Ochai | Tuncap |
| Evangelista | Ogo | Tydingco |
| Evaristo | Ojeda | Tregtas (Treltas) |
| Fabian | Oson | Ulloa |
| Fair | Okada | Ungacta |
| Fajusto | Okazaki | Unpingco |
| Farfan | Ongo | Untalan |
| Faro (Farell) | Oracion | Walker |
| Fausto | Oroso | Walter |
| Fegurgur | Pablo | Watkin |
| Fejeran | Pacheco | Watsu |
| Fernandez | Padilla | West |
| Finona | Palacios | Wilson |
| Flores | Palomo | White |
| Francisco | Peck | Wongham |
| Franquez | Pereda | Wustig (Wusstig) |
| Frage | Pereira | Valensuela (Valenzuela) |
| Furste | Peterson | Veneziano |
| Gamboa | Pellacani | Villenueva |
| Garcia | Posiro | Vespinco |
| Garrido | Petros | Villagomez |
| George | Perez | Yamanaka |
| Gogo | Pimo | Yamasaki |
| Gogue | Pinaleg | Yashita |
| Gomez | Prieto | Yokoi |
| Gonzalo | Pinaula | Zafra |
| Guerrero | Pocahigui (Pocaigue) | Zamora |
| Guevara | Portusach | Zuniga |
