JB
Jack Brown — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Boone-County, Indiana
Our Model Tree links this Jack Brown across the 1930 and 1940 US Censuses in Boone-County, Indiana (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 6-person household.
Age 13
b. ~1927
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Boone-County, Indiana |
| Surname | Brown |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Lebanon City |
| 1935 Residence (County) | Boone |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same Place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Lebanon 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 |
|---|---|---|---|---|
| Noel Brown | Head | — | 40 | ~1900 |
| Eugene Brown | Son | — | 17 | ~1923 |
| Carlton Brown | Son | — | 15 | ~1925 |
| Victor Brown | Son | — | 19 | ~1921 |
| Jack Brown | Son | — | 13 | ~1927 |
| Faye Brown | Spouse | — | 39 | ~1901 |
Census Appearances
1930
Boone, Indiana
Son, age 4
Boone, Indiana · implied b. ~1926 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Jack |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | none |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Boone-County, Indiana
Son, age 13
Boone-County, Indiana · 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 | Indiana |
| 1935 Residence (City) | Lebanon City |
| 1935 Residence (County) | Boone |
| Highest Grade | No 6 |
| 1935 Residence | Same Place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 · Indiana
★ You are viewing this record
Sibling
Carlton Brown
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eugene Brown
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Victor Brown
Sibling · 1940 · age 19
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 — Boone-County, Indiana
Open full size
1940 US Federal Census — Boone-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01028-00062)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Shirley B Isaac | 10 | Son | — | Indiana |
| 2 | William T Hicks | 73 | Head | Vice President | Indiana |
| 3 | Ethel M Quigley | 39 | Daughter | Telephone Operator | Indiana |
| 4 | Juanita M Quigley | 13 | Daughter | — | Indiana |
| 5 | Charlotte L Hanlon | 56 | Head | — | Indiana |
| 6 | Charles Hanlon | 19 | Son | Truck Driver | Indiana |
| 7 | Glenn D Mckinney | 30 | Head | Chauffeur | Indiana |
| 8 | Flossie O Mckinney | 39 | Wife | — | Indiana |
| 9 | Judith Anne Mckinney | 5 | Daughter | — | Indiana |
| 10 | Sharon Lee Mckinney | 3 | Daughter | — | Indiana |
| 11 | William Gwen | 56 | Father-in-law | Carpenter | Indiana |
| 12 | Mary E Hart | 77 | Head | — | Indiana |
| 13 | Joseph G Isenhour | 27 | Head | Mechanic | Indiana |
| 14 | Margaret M Isenhour | 24 | Wife | — | Indiana |
| 15 | Eva Larsh | 67 | Head | — | Indiana |
| 16 | Noel H Brown | 40 | Head | Maker Ice Cream | Indiana |
| 17 | Faye M Brown | 39 | Wife | Cook | Indiana |
| 18 | Victor Brown | 19 | Son | Clerk | Indiana |
| 19 | Eugene Brown | 17 | Son | Clerk | Indiana |
| 20 | Carlton H Brown | 15 | Son | — | Indiana |
| 21 | Jack Brown THIS PERSON | 13 | Son | — | Indiana |
| 22 | Ralph A White | 39 | Head | Service Salesman | Illinois |
| 23 | Marie S White | 37 | Wife | — | Illinois |
| 24 | Norman J. C. White | 15 | Son | — | Illinois |
| 25 | Rowena Ann White | 7 | Daughter | — | Illinois |
| 26 | Roy H Smith | 56 | Head | Mill Right | Indiana |
| 27 | Osa M Smith | 49 | Wife | — | Indiana |
| 28 | Mark A Bowman | 35 | Head | Finisher | Indiana |
| 29 | Georgia May Bowman | 34 | Wife | — | Indiana |
| 30 | Laura Pearl Bowman | 15 | Daughter | — | Indiana |
| 31 | Bobby Earl Bowman | 12 | Son | — | Indiana |
| 32 | Earnest Young | 44 | Head | Laborer | Indiana |
| 33 | Lou Ann Young | 32 | Wife | — | Tennessee |
| 34 | Otis Johnson | 67 | Head | Training Race Horses | Indiana |
| 35 | Lula Johnson | 69 | Wife | — | Indiana |
| 36 | John Johnson | 42 | Son | Laborer | Indiana |
| 37 | Eunice Johnson | 33 | Daughter | — | Indiana |
| 38 | Clayton H Peterson | 42 | Head | Mechanic | Wisconsin |
| 39 | Bertie Ermel Peterson | 40 | Wife | Seamstress | Indiana |
| 40 | Lawrence Slaughter | 35 | Head | Manager | Kentucky |
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)