JB
Jack Brown — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Apache-County, Arizona
Our Model Tree links this Jack Brown across the 1930 and 1940 US Censuses in Apache-County, Arizona (XGBoost, ~Confirmed) — first a son (b.~1930), then head of a 8-person household.
Age 10
b. ~1930
Male
Son
Born: Arizona
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Apache-County, Arizona |
| Surname | Brown |
| Given Name | Jack Albert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Arizona |
| 1935 Residence (City) | St. Johns |
| 1935 Residence (County) | Apache |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | S 4 |
| 1935 Residence | Same place |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
| Township / Ward | St Johns |
| Est. Birth Year | ~1930 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Jack | Age | Birth yr |
|---|---|---|---|---|
| Elma Brown | Daughter | — | 19 | ~1921 |
| Lorine Brown | Daughter | — | 12 | ~1928 |
| Nathel Brown | Daughter | — | 17 | ~1923 |
| Geraldine Brown | Daughter | — | 21 | ~1919 |
| Gilbert Brown | Head | — | 45 | ~1895 |
| Philip Brown | Son | — | 3 | ~1937 |
| Jack Brown | Son | — | 10 | ~1930 |
| Elda Brown | Spouse | — | 43 | ~1897 |
Census Appearances
1930
Apache, Arizona
Son, age
Apache, Arizona · implied b. ~1930 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Jack Albert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Arizona |
| Father's Birthplace | Arizona |
| Mother's Birthplace | Arizona |
| Occupation | none |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
1940
Apache-County, Arizona
Son, age 10
Apache-County, Arizona · implied b. ~1930 — 8 household members
| Surname | Brown |
| Given Name | Jack Albert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Arizona |
| 1935 Residence (City) | St. Johns |
| 1935 Residence (County) | Apache |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | S 4 |
| 1935 Residence | Same place |
| 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 Jack Brown across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Jack Brown
Son · 1940 · age 10 · b. ~1930 · Arizona
★ You are viewing this record
Sibling
Elma Brown
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Philip Brown
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lorine Brown
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nathel Brown
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Geraldine Brown
Sibling · 1940 · age 21
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 — Apache-County, Arizona
Open full size
1940 US Federal Census — Apache-County, Arizona
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00099-00085)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ralph Deam | 10 | Stepson | — | California |
| 42 | Robert Rockberry | 5 | Son | — | California |
| 43 | Simpson Day | 45 | Head | Operator | Arizona |
| 44 | Myrl Day | 32 | Wife | — | Old Mexico |
| 45 | Leylon Day | 12 | Son | — | New Mexico |
| 46 | Arthur Day | 10 | Son | — | Arizona |
| 47 | Divina Rae Day | 7 | Daughter | — | Arizona |
| 48 | Thell Elwin Day | 1 | Son | — | Arizona |
| 49 | Grover C. Udall | 52 | Head | Farm Operator | Arizona |
| 50 | Dora S. Udall | 52 | Wife | Operator | Arizona |
| 51 | Calvin Udall | 16 | Son | — | Arizona |
| 52 | Ida Udall | 14 | Daughter | — | Arizona |
| 53 | Margaret Murray | 21 | Partner | Operator | Arizona |
| 54 | Andy Murray | 20 | Partner | Stenographer | Arizona |
| 55 | H. Loren Allen | 39 | Head | Principal | Arizona |
| 56 | Rita Allen | 37 | Wife | — | Arizona |
| 57 | John W. Liggeros | 32 | Head | Teacher | Utah |
| 58 | Mary Liggeros | 30 | Wife | — | Missouri |
| 59 | Marilynne Liggeros | 1 | Daughter | — | Utah |
| 60 | Lotta S. Patterson | 43 | Head | Music Teacher | Arizona |
| 61 | Ronald M. Patterson | 13 | Son | — | Florida |
| 62 | Ruth Patterson | 13 | Daughter | — | Florida |
| 63 | Gilbert Brown | 45 | Head | Postmaster | Arizona |
| 64 | Elda Brown | 43 | Wife | Teacher | Arizona |
| 65 | Geraldine Brown | 21 | Daughter | — | Arizona |
| 66 | Elma Brown | 19 | Daughter | — | Arizona |
| 67 | Nathel Brown | 17 | Daughter | — | Arizona |
| 68 | Lorine Brown | 12 | Daughter | — | Arizona |
| 69 | Jack Albert Brown THIS PERSON | 10 | Son | — | Arizona |
| 70 | Philip Ray Brown | 3 | Son | — | California |
| 71 | Grover P. Brown | 49 | Head | Bookkeeper | Arizona |
| 72 | Jeffie Brown | 46 | Wife | — | Texas |
| 73 | Annette Brown | 17 | Daughter | — | Arizona |
| 74 | Nadeen Brown | 12 | Daughter | — | California |
| 75 | Gary Brown | 10 | Son | — | Arizona |
| 76 | Lorin Stanton Hamblin | 46 | Head | Foreman | Arizona |
| 77 | Agnes D. Hamblin | 40 | Wife | — | Arizona |
| 78 | Genevieve Hamblin | 18 | Daughter | — | Arizona |
| 79 | Norma Hamblin | 16 | Daughter | — | Arizona |
| 80 | Wayne Hamblin | 12 | Son | — | 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)