JB
Jack Brown — 1940 US Census Record
Linked across censuses1940 United States Federal Census · San-Bernardino-County, California
Our Model Tree links this Jack Brown across the 1930 and 1940 US Censuses in San-Bernardino-County, California (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 6-person household.
Age 13
b. ~1927
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Bernardino-County, California |
| Surname | Brown |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Redlands city |
| 1935 Residence (County) | San Bernardino |
| Additional Details | |
| Hours Worked | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Redlands 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Jack | Age | Birth yr |
|---|---|---|---|---|
| Shirley Brown | Daughter | — | 9 | ~1931 |
| Joyce Brown | Daughter | — | 15 | ~1925 |
| Eric Brown | Head | — | 41 | ~1899 |
| Jack Brown | Son | — | 13 | ~1927 |
| Eric Brown | Son | — | 11 | ~1929 |
| Alma Brown | Spouse | — | 39 | ~1901 |
Census Appearances
1930
San Bernardino, …
Son, age 3
San Bernardino, California · implied b. ~1927 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Colorado |
| Mother's Birthplace | North Dakota |
| Occupation | none |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Bernardino-County, California
Son, age 13
San-Bernardino-County, California · implied b. ~1927 — 6 household members
| Surname | Brown |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Redlands city |
| 1935 Residence (County) | San Bernardino |
| Hours Worked | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 13 · b. ~1927 · California
★ You are viewing this record
Sibling
Joyce Brown
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eric Brown
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Shirley Brown
Sibling · 1940 · age 9
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 — San-Bernardino-County, California
Open full size
1940 US Federal Census — San-Bernardino-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00291-00204)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Avice Newcomb | 49 | Wife | — | Canada |
| 2 | Margaret Armstrong | 65 | Cook | Cook | Scotland |
| 3 | Charles O. Hurley | 67 | Head | Retired | Illinois |
| 4 | Katherine Hurley | 56 | Wife | — | Iowa |
| 5 | Edith L. Turner | 55 | Head | — | New York |
| 6 | Adeline Brown | 93 | Mother | — | Ohio |
| 7 | Benjamin S. Richardson | 51 | Head | Manager | Arkansas |
| 8 | Lama Morris | 40 | Niece | — | Oklahoma |
| 9 | Edward H. Dewall | 55 | Head | Retired | Maine |
| 10 | Ivana Dewall | 48 | Wife | — | Kentucky |
| 11 | Samuel S. Dewall | 16 | Son | — | California |
| 12 | Edward B. Harper | 42 | Head | Income Tax Examiner | New York |
| 13 | Bertha Harper | 68 | Mother | — | Delaware |
| 14 | Dan O. Shoup | 39 | Co head | — | Indiana |
| 15 | Meta Shoup | 40 | Wife | — | Indiana |
| 16 | John Shoup | 14 | Son | — | Indiana |
| 17 | Pauline Shoup | 10 | Daughter | — | California |
| 18 | John Steven Stewart | 11 | Lodger | — | California |
| 19 | H. L. Clock | 70 | Head | Orange Grower | Iowa |
| 20 | Harold G. Rowe | 45 | Lodger | Laborer | New Hampshire |
| 21 | Eric O. Brown | 41 | Head | — | California |
| 22 | Alma Brown | 39 | Wife | — | California |
| 23 | Joyce Brown | 15 | Daughter | — | California |
| 24 | Jack Brown THIS PERSON | 13 | Son | — | California |
| 25 | Eric Jr. Brown | 11 | Son | — | California |
| 26 | Shirley Mae Brown | 9 | Daughter | — | California |
| 27 | Leslie O. Jordan | 54 | Head | Retired | No Carolina |
| 28 | Mildred Jordan | 47 | Wife | — | Maryland |
| 29 | William B. Jordan | 19 | Son | — | Washington D.C. |
| 30 | Richard Jordan | 9 | Son | — | California |
| 31 | Mamie Steiner | 46 | Cook | Cook | Texas |
| 32 | Clifford L. Brewster | 42 | Head | Nearly Broken Orange Grower | Arkansas |
| 33 | Adeline M. Brewster | 49 | Wife | — | Missouri |
| 34 | Virginia Brewster | 19 | Daughter | — | California |
| 35 | Betty Brewster | 14 | Daughter | — | California |
| 36 | Wallace Mitchell | 83 | Head | Retired Orange Grower | Ohio |
| 37 | Leora Mitchell | 50 | Daughter | — | Ohio |
| 38 | John Humble | 51 | Head | Orange Grower | Missouri |
| 39 | Claudia Humble | 46 | Wife | — | Texas |
| 40 | William M. Johnson | 62 | Head | — | 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)