MP
Maria Perez — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Agana-County, Guam
Our Model Tree links this Maria Perez across the 1930 and 1940 US Censuses in Agana-County, Guam (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 12-person household.
Age 17
b. ~1923
Female
Daughter
Born: Guam
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Agana-County, Guam |
| Surname | Perez |
| Given Name | Maria P. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Cha |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Guam |
| 1935 Residence (County) | Agana |
| Additional Details | |
| Industry | none |
| Highest Grade | No 10 |
| 1935 Residence | Same place |
| Birth State | Guam |
| Birth Country | United States |
| Birthplace (normalized) | guam |
| Township / Ward | Agana City Part Of |
| Est. Birth Year | ~1923 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Maria | Age | Birth yr |
|---|---|---|---|---|
| Ana Perez | Other | — | 52 | ~1888 |
| Ricardo Perez | Son | — | 4 | ~1936 |
| Cecilia Perez | Daughter | — | 25 | ~1915 |
| Gregorio Perez | Other | — | 24 | ~1916 |
| Antonio Perez | Head | — | 49 | ~1891 |
| Vicente Perez | Son | — | 12 | ~1928 |
| Antonio Perez | Son | — | 13 | ~1927 |
| Nicolasa Perez | Spouse | — | 44 | ~1896 |
| Clotilde Perez | Daughter | — | 22 | ~1918 |
| Tomas Perez | Son | — | 16 | ~1924 |
| Maria Perez | Daughter | — | 17 | ~1923 |
| Isabel Perez | Daughter | — | 20 | ~1920 |
Census Appearances
1930
Guam, Guam
Daughter, age 7
Guam, Guam · implied b. ~1923 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Perez |
| Given Name | Maria |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Cha |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Guam |
| Father's Birthplace | Guam |
| Mother's Birthplace | Guam |
| Can Read/Write | No |
| Veteran | No |
| Birth State | Guam |
| Birth Country | United States |
| Birthplace (normalized) | guam |
1940
Agana-County, Guam
Daughter, age 17
Agana-County, Guam · implied b. ~1923 — 12 household members
| Surname | Perez |
| Given Name | Maria P. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Cha |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Guam |
| 1935 Residence (County) | Agana |
| Industry | none |
| Highest Grade | No 10 |
| 1935 Residence | Same place |
| Birth State | Guam |
| Birth Country | United States |
| Birthplace (normalized) | guam |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links Maria Perez across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Maria Perez
Daughter · 1940 · age 17 · b. ~1923 · Guam
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Sibling
Isabel Perez
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ricardo Perez
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vicente Perez
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Cecilia Perez
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Tomas Perez
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clotilde Perez
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Antonio Perez
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Agana-County, Guam
Open full size
1940 US Federal Census — Agana-County, Guam
Page Contents
25 people indexed on this census page (nara:1940:m-t0627-04643-00244)
| Line | Name | Age | Relation | Birthplace |
|---|---|---|---|---|
| 1 | Rosa P. Salas | 4 | daughter | Guam |
| 2 | Antonio L. G. Perez | 49 | Head | Guam |
| 3 | Nicolasa P. Perez | 44 | wife | Guam |
| 4 | Cecilia P. Perez | 25 | daughter | Guam |
| 5 | Clotilde P. Perez | 22 | daughter | Guam |
| 6 | Isabel P. Perez | 20 | daughter | Guam |
| 7 | Maria P. Perez THIS PERSON | 17 | daughter | Guam |
| 8 | Tomas P. Perez | 16 | son | Guam |
| 9 | Antonio P. Perez | 13 | son | Guam |
| 10 | Vicente P. Perez | 12 | son | Guam |
| 11 | Ricardo P. Perez | 4 | son | Guam |
| 12 | Ana L. G. Perez | 52 | sister | Guam |
| 13 | Gregorio C. Perez | 24 | nephew | Guam |
| 14 | Jesus L. G. Perez | 56 | Head | Guam |
| 15 | Rosa M. Perez | 54 | wife | Guam |
| 16 | Francisco M. Perez | 24 | son | Guam |
| 17 | Josefa M. Perez | 20 | daughter | Guam |
| 18 | Baltazar M. Perez | 16 | son | Guam |
| 19 | Rafila E. M. Perez | 16 | daughter | Guam |
| 20 | Josafat M. Perez | 13 | son | Guam |
| 21 | Maria R. Mesa | 74 | Head | Guam |
| 22 | Carmen Q. Mesa | 29 | niece | Guam |
| 23 | Juana S. Iwatsu | 23 | Foster daughter | Guam |
| 24 | Tomas S. Iwatsu | 20 | Foster son | Guam |
| 25 | Rivera S. Iwatsu | 15 | Foster daughter | Guam |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)