MR
Maria Rodriguez — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Maricopa-County, Arizona
Our Model Tree links this Maria Rodriguez across the 1930 and 1940 US Censuses in Maricopa-County, Arizona (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 7-person household.
Age 13
b. ~1927
Female
Daughter
Born: Arizona
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Maricopa-County, Arizona |
| Surname | Rodriguez |
| Given Name | Maria |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Arizona |
| 1935 Residence (City) | Tempe City |
| 1935 Residence (County) | Maricopa |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Same home |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
| Township / Ward | Tempe City |
| 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 Maria | Age | Birth yr |
|---|---|---|---|---|
| Edward Calderon | Son | — | 15 | ~1925 |
| Maria Rodriguez | Daughter | — | 13 | ~1927 |
| Geronimo Calderon | Head | — | 48 | ~1892 |
| Gilbert Calderon | Son | — | 17 | ~1923 |
| Josephine Rodriguez | Daughter | — | 11 | ~1929 |
| Abelardo Rodriguez | Son | — | 11 | ~1929 |
| Alex Calderon | Son | — | 20 | ~1920 |
Census Appearances
1930
Maricopa, Arizona
Daughter, age 4
Maricopa, Arizona · implied b. ~1926 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Rodriguez |
| Given Name | Maria |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Mexican |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Arizona |
| Father's Birthplace | Mexico |
| Mother's Birthplace | Mexico |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
1940
Maricopa-County, Arizona
Daughter, age 13
Maricopa-County, Arizona · implied b. ~1927 — 7 household members
| Surname | Rodriguez |
| Given Name | Maria |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Arizona |
| 1935 Residence (City) | Tempe City |
| 1935 Residence (County) | Maricopa |
| Highest Grade | No 4 |
| 1935 Residence | Same home |
| 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 Rodriguez across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Maria Rodriguez
Daughter · 1940 · age 13 · b. ~1927 · Arizona
★ You are viewing this record
Sibling
Alex Calderon
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gilbert Calderon
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Abelardo Rodriguez
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Calderon
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Josephine Rodriguez
Sibling · 1940 · age 11
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 — Maricopa-County, Arizona
Open full size
1940 US Federal Census — Maricopa-County, Arizona
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00106-00307)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Aurora Cortez | 10 | daughter | — | Arizona |
| 42 | Mary Martinez | 40 | Head | Housemaid | Arizona |
| 43 | Dolores Martinez | 17 | daughter | Housemaid | Arizona |
| 44 | Gilbert Martinez | 14 | son | — | Arizona |
| 45 | Belia Martinez | 13 | daughter | — | Arizona |
| 46 | Benito Martinez | 9 | son | — | Arizona |
| 47 | Chonita Martinez | 8 | daughter | — | Arizona |
| 48 | Julia Martinez | 5 | daughter | — | Arizona |
| 49 | Genaro Martinez | 1 | son | — | Arizona |
| 50 | Percilia Martinez | 0 | daughter | — | Arizona |
| 51 | Cecil Mccaw | 19 | Head | Gas Filling Sta Operator | Oklahoma |
| 52 | Geronimo Calderon | 48 | Head | — | Mexico |
| 53 | Alex Calderon | 20 | son | Carp Helper | Arizona |
| 54 | Gilbert Calderon | 17 | son | Labour | Arizona |
| 55 | Edward Calderon | 15 | son | — | Arizona |
| 56 | Maria Rodriguez THIS PERSON | 13 | daughter | — | Arizona |
| 57 | Abelardo Rodriguez | 11 | son | — | Arizona |
| 58 | Josephine Rodriguez | 11 | daughter | — | Arizona |
| 59 | William Fulger | 34 | Head | Supervising Pool Opr | Missouri |
| 60 | Ruth Fulger | 27 | wife | — | Texas |
| 61 | Barbara Jean Fulger | 9 | daughter | — | Arizona |
| 62 | Nellie Ruth Fulger | 4 | daughter | — | Arizona |
| 63 | John F. Drumm | 81 | Head | — | Wisconsin |
| 64 | Joseph E. Drumm | 46 | son | — | California |
| 65 | Lucile N. Drumm | 46 | daughter | — | California |
| 66 | Jerry Farslow | 37 | Head | Maintenance Man | Tennessee |
| 67 | Martha Boyers | 66 | mother | — | Tennessee |
| 68 | Evelyn Abendroth | 32 | sister | Waitress | Tennessee |
| 69 | Gordon Mcdirm | 37 | Head | Labour | California |
| 70 | Fern Mcdirm | 35 | wife | — | Montana |
| 71 | Dennis Mcdirm | 3 | son | — | Arizona |
| 72 | Ralph G. Scott | 37 | Head | Welder | Oklahoma |
| 73 | Mary Scott | 27 | wife | Nurse | Ohio |
| 74 | Barbara Scott | 12 | daughter | — | California |
| 75 | Tony Igleski | 18 | brother-in-law | Pump Gas Station | Ohio |
| 76 | Steve Macko | 47 | Head | Cook | Tennessee |
| 77 | Gertrude Macko | 24 | daughter | Waitress | Tennessee |
| 78 | Raymond Macko | 21 | son | — | Tennessee |
| 79 | Maurice Macko | 17 | son | — | Tennessee |
| 80 | Valencia Macko | 13 | daughter | — | Arizona |
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)