Although the first official U.S. Census that included Guam was held in 1920, there were Chamorro people included in the 1910 through other methods. Researchers should be cognizant of this, the possibility of names taking on a new form of spelling (possibly forever). Here are three samples of the 1910 Census.
Military on Guam
For Guam in particular, Chamorro people serving the U.S. military and some of their families (not all) were included.
Although some of the information in this pictured sampling is not clear I have identified the following people:
James H. Underwood
m. Ana [Pangelinan Martinez] Underwood
--Mary E. Underwood
--Rita E. Underwood
Fabian de la Cruz
m. Encarnacion [Delgado Pereira] Cruz
--Carlos Cruz
Maximo [Terlaje] Aflleje (single)
Joaquin Cruz (single)
Jesus F. Santos (married)
Antonio S[antos] Aflague (single)
Pedro Quitugua (married)
Vicente Taimanglo (single)
Enrique Sablan (single)
Antonio C. Salas (married)
Jose M. Santos (single)
Joaquin Aflleje (single)
Migration to Honolulu, Hawaii
Pedro [Aguon]
m. Mary Aguon
--Ren Aguon
--Florence Aguon
--Mary Aguon
--Elsie Aguon
--Lusianna Aguon
--Miriam Aguon
(Genealogy Note/Tip: Aguon was spelled “Augon” by the transcriber. This may or may not have affected the future recording and spelling of their family surname. Researchers just need to cognizant that names have a way of morphing through phonetic or translational errors.)
Migration to Stockton, California
Ben Santos (single)
Joe [Mendiola] (single)
Bob Santos