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Maria Martinez — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cowley-County, Kansas
Our Model Tree links this Maria Martinez across the 1930 and 1940 US Censuses in Cowley-County, Kansas (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 11-person household.
Age 12
b. ~1928
Female
Daughter
Born: Kansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cowley-County, Kansas |
| Surname | Martinez |
| Given Name | Maria L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Arkansas City |
| 1935 Residence (County) | Cowley |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Township / Ward | Arkansas City |
| Est. Birth Year | ~1928 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Maria | Age | Birth yr |
|---|---|---|---|---|
| Christina Martinez | Daughter | — | 8 | ~1932 |
| Julian Martinez | Son | — | 10 | ~1930 |
| Sonia Martinez | Son | — | 4 | ~1936 |
| Antonia Martinez | Daughter | — | 16 | ~1924 |
| Concepcion Martinez | Daughter | — | 7 | ~1933 |
| Maria Martinez | Daughter | — | 12 | ~1928 |
| Carmen Martinez | Daughter | — | 1 | ~1939 |
| Caleta Martinez | Daughter | — | 15 | ~1925 |
| Carmen Martinez | Spouse | — | 32 | ~1908 |
| Pedro Martinez | Son | — | ~1940 | |
| Marion Martinez | Head | — | 41 | ~1899 |
Census Appearances
1930
Cowley, Kansas
Daughter, age 3
Cowley, Kansas · implied b. ~1927 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martinez |
| Given Name | Marie |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Mexican |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Mexico |
| Mother's Birthplace | Mexico |
| Occupation | none |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Cowley-County, Kansas
Daughter, age 12
Cowley-County, Kansas · implied b. ~1928 — 11 household members
| Surname | Martinez |
| Given Name | Maria L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Arkansas City |
| 1935 Residence (County) | Cowley |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 Martinez across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Maria Martinez
Daughter · 1940 · age 12 · b. ~1928 · Kansas
★ You are viewing this record
Sibling
Antonia Martinez
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Pedro Martinez
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Caleta Martinez
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Concepcion Martinez
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carmen Martinez
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Christina Martinez
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Julian Martinez
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sonia Martinez
Sibling · 1940 · age 4
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 — Cowley-County, Kansas
Open full size
1940 US Federal Census — Cowley-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01226-00171)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | W. D. Hall | 81 | Head | — | Missouri |
| 42 | Cora L. Hall | 63 | Wife | — | Missouri |
| 43 | Garland Fussell | 29 | Head | Carpenter Helper | Oklahoma |
| 44 | Beulah Fussell | 31 | Wife | — | Illinois |
| 45 | Marion C. Fussell | 5 | Son | — | Kansas |
| 46 | Cecil B. Fussell | 4 | Son | — | Kansas |
| 47 | Gary Joe Fussell | 2 | Son | — | Kansas |
| 48 | Leona Glover | 45 | Head | Stenographer | Kansas |
| 49 | George Glover | 18 | Son | — | Kansas |
| 50 | Marion Martinez | 41 | Head | Hostler Helper | Mexico |
| 51 | Carmen H. Martinez | 32 | Wife | — | Texas |
| 52 | Antonia Martinez | 16 | Daughter | Towel Checker | Kansas |
| 53 | Caleta Martinez | 15 | Daughter | — | Kansas |
| 54 | Maria L. Martinez THIS PERSON | 12 | Daughter | — | Kansas |
| 55 | Julian Martinez | 10 | Son | — | Kansas |
| 56 | Christina Martinez | 8 | Daughter | — | Kansas |
| 57 | Concepcion Martinez | 7 | Daughter | — | Kansas |
| 58 | Sonia Martinez | 4 | Son | — | Kansas |
| 59 | Carmen Martinez | 1 | Daughter | — | Kansas |
| 60 | Pedro Martinez | 0 | Son | — | Kansas |
| 61 | Joseph Rodriguez | 43 | Head | Laborer | Mexico |
| 62 | Iny Rodriguez | 40 | Head | — | Mexico |
| 63 | John Rodriguez | 20 | Son | New Worker | Kansas |
| 64 | Raymond Rodriguez | 19 | Son | New Worker | Kansas |
| 65 | Julio Rodriguez | 16 | Son | — | Kansas |
| 66 | Petra Rodriguez | 13 | Daughter | — | Kansas |
| 67 | Rose Rodriguez | 11 | Daughter | — | Kansas |
| 68 | Cresencio Rodriguez | 6 | Son | — | Kansas |
| 69 | Jesse Rodriguez | 5 | Son | — | Kansas |
| 70 | Natividad Carmona | 20 | Brother | Truck Driver | Kansas |
| 71 | Lola Carmona | 20 | Sister-in-law | — | Kansas |
| 72 | Richard Carmona | 1 | Nephew | — | Illinois |
| 73 | Henry Carmona | 0 | Nephew | — | Kansas |
| 74 | William H. Myers | 74 | Head | — | Indiana |
| 75 | John P. Showalter | 43 | Head | Welder | Kansas |
| 76 | Hazel Showalter | 32 | Wife | — | Kansas |
| 77 | Shirley Ann Showalter | 11 | Daughter | — | Kansas |
| 78 | Leona C. Showalter | 9 | Daughter | — | Kansas |
| 79 | Jack M. Showalter | 7 | Son | — | Kansas |
| 80 | John Perry Showalter | 3 | Son | — | Kansas |
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)