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Jose Martinez — 1940 US Census Record
Model Tree available1940 United States Federal Census · Maricopa-County, Arizona
Our Model Tree links this Jose Martinez across the 1920, 1930 and 1940 US Censuses in Maricopa-County, Arizona (XGBoost, ~Confirmed), with identified parents Pedro & Francisca — first a son (b.~1917), then head of a 6-person household.
Age 23
b. ~1917
Male
Son
Born: Arizona
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Maricopa-County, Arizona |
| Surname | Martinez |
| Given Name | Jose |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Arizona |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Maricopa |
| Additional Details | |
| Occupation | Common Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 17 |
| Income (1939) | 156 |
| Highest Grade | Hs 1 |
| 1935 Residence | Arizona |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
| Occupation | Common Laborer |
| Township / Ward | Supervisorial District No 1 |
| Est. Birth Year | ~1917 |
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 Jose | Age | Birth yr |
|---|---|---|---|---|
| Francisca Martinez | Daughter | — | 21 | ~1919 |
| Catalina Martinez | Daughter | — | 18 | ~1922 |
| Athelana Martinez | Daughter | — | 16 | ~1924 |
| Francisca Martinez | Head | — | 47 | ~1893 |
| Jose Martinez | Son | — | 23 | ~1917 |
| Trinidad Martinez | Son | — | 20 | ~1920 |
Census Appearances
1920
Maricopa, Arizona
Son, age 2
Maricopa, Arizona · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martinez |
| Given Name | Jose |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Arizona |
| Father's Birthplace | Mexico |
| Mother's Birthplace | Mexico |
| Occupation | none |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
1930
Maricopa, Arizona
Son, age 13
Maricopa, Arizona · implied b. ~1917 — 38 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martinez |
| Given Name | Jose |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Mexican |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Arizona |
| Father's Birthplace | Mexico |
| Mother's Birthplace | Mexico |
| Can Read/Write | Yes |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
1940
Maricopa-County, Arizona
Son, age 23
Maricopa-County, Arizona · implied b. ~1917 — 6 household members
| Surname | Martinez |
| Given Name | Jose |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Arizona |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Maricopa |
| Occupation | Common Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 17 |
| Income (1939) | 156 |
| Highest Grade | Hs 1 |
| 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 Jose Martinez across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Pedro Martinez (~0.92 confidence) and mother Francisca Martinez (~0.92 confidence) and mother Francisca Martinez (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Pedro Martinez
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Francisca Martinez
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Francisca Martinez
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Jose Martinez
Son · 1940 · age 23 · b. ~1917 · Arizona
★ You are viewing this record
Sibling
Catalina Martinez
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francisca Martinez
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Athelana Martinez
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Trinidad Martinez
Sibling · 1940 · age 20
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-t0627-00107-00075)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Audrey Greeny | 30 | Wife | — | Oklahoma |
| 2 | Kenneth Greeny | 10 | Son | — | Oklahoma |
| 3 | Bernice Greeny | 8 | Daughter | — | Oklahoma |
| 4 | Edward Greeny | 5 | Son | — | Oklahoma |
| 5 | Lyndle Greeny | 1 | Son | — | Arizona |
| 6 | Russell R. Lindley | 31 | Head | Foreman | Texas |
| 7 | Frances P. Lindley | 30 | Wife | — | Oklahoma |
| 8 | Russella Lindley | 2 | Daughter | — | Arizona |
| 9 | Guy Lemonnier | 56 | Head | Carpenter | Iowa |
| 10 | Chris Jr. Boel | 33 | Head | Common Laborer | Denmark |
| 11 | Frederick Boel | 11 | Son | — | Arizona |
| 12 | Betty Ann Boel | 9 | Daughter | — | Arizona |
| 13 | Lawrence Enett | 30 | Head | Attendant | Texas |
| 14 | Willie B. B. Enett | 26 | Wife | — | Oklahoma |
| 15 | Barbara Enett | 5 | Daughter | — | Oklahoma |
| 16 | Arthur Enett | 2 | Son | — | Arizona |
| 17 | Tomas Marquez | 50 | Head | Gardner | Mexico |
| 18 | Rosalia Marquez | 47 | Wife | — | Mexico |
| 19 | Micaela Echeverria | 24 | Daughter | — | California |
| 20 | Stephen Ong | 30 | Head | Owner And Manager | China |
| 21 | Wong Shee Ong | 29 | Wife | Assistant | China |
| 22 | Jesus Marquez | 70 | Head | Owner And Manager | Mexico |
| 23 | Pamfila Marquez | 55 | Wife | — | Mexico |
| 24 | Tomasa Marquez | 30 | Daughter | Assistant | Mexico |
| 25 | Antonio Marquez | 26 | Son | Assistant | Mexico |
| 26 | Francisco Marquez | 22 | Son | Assistant | Mexico |
| 27 | Rosa Baldenegro | 50 | Head | — | Arizona |
| 28 | Erlinda Baldenegro | 23 | Daughter | — | Arizona |
| 29 | Ernesto Baldenegro | 13 | Son | — | Arizona |
| 30 | Manuel Baldenegro | 5 | Nephew | — | Arizona |
| 31 | Francisca Martinez | 47 | Head | — | Mexico |
| 32 | Jose Martinez THIS PERSON | 23 | Son | Common Laborer | Arizona |
| 33 | Francisca Martinez | 21 | Daughter | Seamstress | Arizona |
| 34 | Trinidad Martinez | 20 | Son | Common Laborer | Arizona |
| 35 | Catalina Martinez | 18 | Daughter | — | Arizona |
| 36 | Athelana Martinez | 16 | Daughter | — | Arizona |
| 37 | Maria Valenzuela | 24 | Head | — | Mexico |
| 38 | Milnoz Felisiano Valenzuela | 7 | Step-son | — | Arizona |
| 39 | Benita Valenzuela | 4 | Step-daughter | — | Arizona |
| 40 | Artemisa Valenzuela | 3 | Step-daughter | — | Arizona |
Pedigree Summary
Jose + 4 siblings
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)