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Mary Lopez — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Bernalillo-County, New Mexico
Our Model Tree links this Mary Lopez across the 1930 and 1940 US Censuses in Bernalillo-County, New Mexico (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 7-person household.
Age 13
b. ~1927
Female
Daughter
Born: New Mexico
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Bernalillo-County, New Mexico |
| Surname | Lopez |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New Mexico |
| 1935 Residence (City) | Ranchos de Albuquerque |
| 1935 Residence (County) | Bernalillo |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | New Mexico |
| Birth Country | United States |
| Birthplace (normalized) | new mexico |
| Township / Ward | Ranchos De Albuquerque |
| Est. Birth Year | ~1927 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Evado Lopez | Son | — | 8 | ~1932 |
| Ernesto Lopez | Son | — | 17 | ~1923 |
| Josefa Lopez | Spouse | — | 35 | ~1905 |
| Manuel Lopez | Son | — | 10 | ~1930 |
| Ernesto Lopez | Daughter | — | 7 | ~1933 |
| Mary Lopez | Daughter | — | 13 | ~1927 |
| Louisiana Lopez | Head | — | 38 | ~1902 |
Census Appearances
1930
Bernalillo, New …
Daughter, age 2
Bernalillo, New Mexico · implied b. ~1928 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lopez |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | New Mexico |
| Father's Birthplace | New Mexico |
| Mother's Birthplace | New Mexico |
| Occupation | none |
| Birth State | New Mexico |
| Birth Country | United States |
| Birthplace (normalized) | new mexico |
1940
Bernalillo-County, New …
Daughter, age 13
Bernalillo-County, New Mexico · implied b. ~1927 — 7 household members
| Surname | Lopez |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New Mexico |
| 1935 Residence (City) | Ranchos de Albuquerque |
| 1935 Residence (County) | Bernalillo |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | New Mexico |
| Birth Country | United States |
| Birthplace (normalized) | new mexico |
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 Mary Lopez across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Lopez
Daughter · 1940 · age 13 · b. ~1927 · New Mexico
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Sibling
Ernesto Lopez
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Manuel Lopez
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Evado Lopez
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ernesto Lopez
Sibling · 1940 · age 7
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 — Bernalillo-County, New Mexico
Open full size
1940 US Federal Census — Bernalillo-County, New Mexico
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02438-00133)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Josefina Barela | 60 | Head | — | New Mexico |
| 2 | Ponciano Barela | 19 | Son | Laborer | New Mexico |
| 3 | Candelaria Ramos | 54 | Head | — | New Mexico |
| 4 | Louisiana A. Lopez | 38 | Head | Laborer | New Mexico |
| 5 | Josefa P. Lopez | 35 | Wife | — | New Mexico |
| 6 | Ernesto Lopez | 17 | Son | Farm Hand | New Mexico |
| 7 | Mary Lopez THIS PERSON | 13 | Daughter | — | New Mexico |
| 8 | Manuel Lopez | 10 | Son | — | New Mexico |
| 9 | Evado Lopez | 8 | Son | — | New Mexico |
| 10 | Ernesto Lopez | 7 | Daughter | — | New Mexico |
| 11 | Francisco Martinez | 64 | Head | — | New Mexico |
| 12 | Jose Padia | 15 | Son | Farm Laborer | New Mexico |
| 13 | Rodolfo Romero | 34 | Head | Clerk | New Mexico |
| 14 | Marina Romero | 26 | Wife | — | New Mexico |
| 15 | Felecita Romero | 76 | Head | — | New Mexico |
| 16 | Flora Romero | 49 | Daughter | Maid | New Mexico |
| 17 | Juan J. Sanchez | 57 | Head | Farm Laborer | New Mexico |
| 18 | Remedios Sanchez | 52 | Wife | — | New Mexico |
| 19 | Manuel Sanchez | 24 | Son | Farm Laborer | New Mexico |
| 20 | Albert Sanchez | 17 | Son | — | New Mexico |
| 21 | Eloy Sanchez | 15 | Son | — | New Mexico |
| 22 | Carlota Sanchez | 10 | Daughter | — | New Mexico |
| 23 | Clarence R. Brown | 34 | Head | Electrician | W. Virginia |
| 24 | Elizabeth Brown | 32 | Wife | — | Arkansas |
| 25 | Betty Brown | 2 | Daughter | — | New Mexico |
| 26 | Leon Brown | 4 | Son | — | Oklahoma |
| 27 | Modesto Serna | 59 | Head | Farmer | New Mexico |
| 28 | Delores Serna | 49 | Wife | — | New Mexico |
| 29 | Sam Serna | 24 | Son | — | New Mexico |
| 30 | Ricardo Serna | 22 | Son | — | New Mexico |
| 31 | Modesto Jr. Serna | 18 | Son | Laborer | New Mexico |
| 32 | Freddie Serna | 17 | Son | — | New Mexico |
| 33 | Jose Serna | 13 | Son | — | New Mexico |
| 34 | Alfred Serna | 11 | Son | — | New Mexico |
| 35 | Rosendo Serna | 9 | Son | — | New Mexico |
| 36 | Lucille Serna | 23 | Daughter | Maid | New Mexico |
| 37 | Robert Calderon | 5 | Grandson | — | New Mexico |
| 38 | Dora Serna | 4 | Daughter | — | New Mexico |
| 39 | Angelo Sardatti | 57 | Head | Stone Mason | Texas |
| 40 | Leona Krull | 17 | Lodger | Clerk | New Mexico |
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)