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Maria Lopez — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Maricopa-County, Arizona
Our Model Tree links this Maria Lopez across the 1920, 1930 and 1940 US Censuses in Maricopa-County, Arizona (XGBoost, ~Confirmed) — first a head (b.~1892), then head of a 6-person household.
Age 48
b. ~1892
Female
Head
Born: Arizona
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Maricopa-County, Arizona |
| Surname | Lopez |
| Given Name | Maria |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Widowed |
| Birthplace | Arizona |
| 1935 Residence (City) | Bouse |
| 1935 Residence (County) | Yuma |
| Additional Details | |
| Highest Grade | No 0 |
| 1935 Residence | Arizona |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
| Township / Ward | Wickenburg Town |
| Est. Birth Year | ~1892 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Maria | Age | Birth yr |
|---|---|---|---|---|
| Gumersinda Lopez | Son | — | 14 | ~1926 |
| Inez Lopez | Daughter | — | 16 | ~1924 |
| Joe Lopez | Son | — | 8 | ~1932 |
| Julia Lopez | Daughter | — | 12 | ~1928 |
| Ira Lopez | Son | — | 17 | ~1923 |
| Maria Lopez | Head | — | 48 | ~1892 |
Census Appearances
1920
Maricopa, Arizona
Spouse, age 32
Maricopa, Arizona · implied b. ~1888 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lopez |
| Given Name | Maria |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Arizona |
| Father's Birthplace | Mexico |
| Mother's Birthplace | Mexico |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
1930
Maricopa, Arizona
Spouse, age 40
Maricopa, Arizona · implied b. ~1890 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lopez |
| Given Name | Maria |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Mexican |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Arizona |
| Age at First Marriage | 23 |
| Father's Birthplace | Arizona |
| Mother's Birthplace | Arizona |
| Can Read/Write | Yes |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
1940
Maricopa-County, Arizona
Head, age 48
Maricopa-County, Arizona · implied b. ~1892 — 6 household members
| Surname | Lopez |
| Given Name | Maria |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Widowed |
| Birthplace | Arizona |
| 1935 Residence (City) | Bouse |
| 1935 Residence (County) | Yuma |
| Highest Grade | No 0 |
| 1935 Residence | Arizona |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
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 Lopez across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Maria Lopez
Head · 1940 · age 48 · b. ~1892 · Arizona
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Maricopa-County, Arizona
Open full size
1940 US Federal Census — Maricopa-County, Arizona
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00108-00754)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Dona Leona Hightower | 7 | Daughter | — | Arizona |
| 42 | Merva Marie Hightower | 5 | Daughter | — | Arizona |
| 43 | Frances Hightower | 3 | Daughter | — | Arizona |
| 44 | William M. Hightower | 2 | Son | — | Arizona |
| 45 | Raymond Gonzalez | 52 | Head | Laborer | N. Mexico |
| 46 | Nora Gonzalez | 36 | Wife | — | Texas |
| 47 | Theresa Gonzalez | 21 | Daughter | Housekeeper | N. Mexico |
| 48 | Fidel (Ab) Gonzalez | 18 | Son | — | N. Mexico |
| 49 | Patrick Gonzalez | 16 | Son | Printing Office | Arizona |
| 50 | Toni Gonzalez | 13 | Daughter | — | Arizona |
| 51 | Joe Ray Gonzalez | 11 | Son | — | Arizona |
| 52 | Mary Gonzalez | 8 | Daughter | — | Arizona |
| 53 | Jim Jr. Gonzalez | 6 | Son | — | Arizona |
| 54 | Shirley Gonzalez | 3 | Daughter | — | Arizona |
| 55 | Manuel Gonzalez | 26 | adopted son | Laborer | Arizona |
| 56 | Maria Lopez THIS PERSON | 48 | Head | — | Arizona |
| 57 | Inez Lopez | 16 | Daughter | — | Arizona |
| 58 | Ira (Ab) Lopez | 17 | Son | — | Arizona |
| 59 | Gumersinda Lopez | 14 | Son | — | Arizona |
| 60 | Julia Lopez | 12 | Daughter | — | Arizona |
| 61 | Joe Lopez | 8 | Son | — | Arizona |
| 62 | Frank H. Bartee | 42 | Head | Truck Driver | Texas |
| 63 | Essie E. Bartee | 35 | Wife | Waitress | Texas |
| 64 | Frank H. Jr. Bartee | 18 | Son | — | Texas |
| 65 | Kenneth Ray Bartee | 15 | Son | — | Texas |
| 66 | Billy Gene Bartee | 12 | Son | — | Arizona |
| 67 | Oscar D. Moffett | 42 | Head | Bakery | California |
| 68 | Elizabeth Moffett | 50 | Wife | — | British Columbia |
| 69 | Oscar Jr. Moffett | 16 | Son | — | California |
| 70 | Nora Moffett | 13 | Daughter | — | Arizona |
| 71 | Neoma Moffett | 11 | Daughter | — | Arizona |
| 72 | Elizabeth D. Darr | 57 | Head | Barber | Illinois |
| 73 | Thomas White | 44 | Head | — | Tennessee |
| 74 | George H. Johnson | 49 | Head | Farm Laborer | Texas |
| 75 | Ed. Hay | 52 | Lodger | — | Oklahoma |
| 76 | George Hutchman | 56 | Head | Proprietor | Illinois |
| 77 | John Ellis Hollins | 66 | Lodger | Shoe Shiner | Texas |
| 78 | Joseph C. Kaufman | 72 | Lodger | Carpenter | Indiana |
| 79 | Claude C. Chapman | 44 | Head | Trainman | Missouri |
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)