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Leonard Brown — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Union-County, Illinois
Our Model Tree links this Leonard Brown across the 1920, 1930 and 1940 US Censuses in Union-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1901), then head of a 8-person household.
Age 39
b. ~1901
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Union-County, Illinois |
| Surname | Brown |
| Given Name | Leonard |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Cobden village |
| 1935 Residence (County) | Union |
| Additional Details | |
| Occupation | Laborer |
| Industry | WPA Sewer |
| Class of Worker | GW |
| Hours Worked | 54 |
| Income (1939) | 360 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Laborer |
| Township / Ward | Cobden Village |
| Est. Birth Year | ~1901 |
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 Leonard | Age | Birth yr |
|---|---|---|---|---|
| Leonard Brown | Head | — | 39 | ~1901 |
| Kay Brown | Daughter | — | 4 | ~1936 |
| Mary Brown | Daughter | — | 14 | ~1926 |
| Charles Brown | Son | — | 21 | ~1919 |
| Lilly Brown | Daughter | — | 17 | ~1923 |
| Sarah Brown | Spouse | — | 41 | ~1899 |
| Helen Brown | Daughter | — | 2 | ~1938 |
| Lilla Brown | Daughter | — | 10 | ~1930 |
Census Appearances
1920
Union, Illinois
Head, age 22
Union, Illinois · implied b. ~1898 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Leonard |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Union, Illinois
Head, age 31
Union, Illinois · implied b. ~1899 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Leonard |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 19 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Laborer |
| Industry | R. R. Section |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 8 |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Union-County, Illinois
Head, age 39
Union-County, Illinois · implied b. ~1901 — 8 household members
| Surname | Brown |
| Given Name | Leonard |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Cobden village |
| 1935 Residence (County) | Union |
| Occupation | Laborer |
| Industry | WPA Sewer |
| Class of Worker | GW |
| Hours Worked | 54 |
| Income (1939) | 360 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Leonard Brown across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Leonard Brown
Head · 1940 · age 39 · b. ~1901 · Illinois
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Union-County, Illinois
Open full size
1940 US Federal Census — Union-County, Illinois
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00896-00288)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ivda O. Darnell | 27 | Wife | — | Missouri |
| 42 | Dale Darnell | 14 | Son | — | Illinois |
| 43 | Amanda Darnell | 74 | Mother | — | Illinois |
| 44 | Sam Zisken | 53 | Head | Laborer | Tennessee |
| 45 | Henry Zisken | 18 | Son | Laborer | Missouri |
| 46 | Winifred Zisken | 15 | Son | — | Missouri |
| 47 | Edwin B. Fitch | 41 | Head | Owner | Illinois |
| 48 | Effie A. Fitch | 38 | Wife | — | Illinois |
| 49 | George Edwin Fitch | 16 | Son | — | Illinois |
| 50 | Nancy Lockard | 73 | Mother-in-law | — | Illinois |
| 51 | Tom C. Ragsdale | 80 | Head | — | Illinois |
| 52 | Susan E. Ragsdale | 73 | Wife | — | Kentucky |
| 53 | Wayne Homer | 22 | Roomer | — | Illinois |
| 54 | Albert D. Griffith | 22 | Son | Sets Plants | Illinois |
| 55 | Ernest R. Kelly | 19 | Son | Fireman | Illinois |
| 57 | Fred C. Flamm | 32 | Head | Foreman | Illinois |
| 58 | Mae Flamm | 35 | Wife | Machine Operator | Illinois |
| 59 | Ethel Mae Flamm | 12 | Daughter | — | Illinois |
| 60 | Audrey Ann Flamm | 10 | Daughter | — | Illinois |
| 61 | Marlene L. Flamm | 8 | Daughter | — | Illinois |
| 62 | Charles Thomas Flamm | 4 | Son | — | Illinois |
| 63 | Leonard Brown THIS PERSON | 39 | Head | Laborer | Illinois |
| 64 | Sarah Brown | 41 | Wife | Laborer | Illinois |
| 65 | Charles Wm. Brown | 21 | Son | Painter | Illinois |
| 66 | Mary Anita Brown | 14 | Daughter | — | Illinois |
| 67 | Lilla Ann Brown | 10 | Daughter | — | Illinois |
| 68 | Kay Frances Brown | 4 | Daughter | — | Illinois |
| 69 | Helen Mae Brown | 2 | Daughter | — | Illinois |
| 70 | Lilly Pauline Brown | 17 | Daughter | — | Illinois |
| 71 | Jentry Harris | 64 | Head | Laborer | Indiana |
| 72 | Amos Kendall | 70 | Head | Prunes Trees | Illinois |
| 73 | Eliza A. Stewart | 64 | Head | Basket Weaver | Illinois |
| 74 | Lucy Ogden | 38 | Head | Housework | Illinois |
| 75 | Donald Ogden | 14 | Son | — | Illinois |
| 76 | Dorothy Ogden | 13 | Daughter | — | Illinois |
| 77 | Jack Ogden | 11 | Son | — | Illinois |
| 78 | Bill Ogden | 9 | Son | — | Illinois |
| 79 | Erma Ogden | 7 | Daughter | — | Illinois |
| 80 | Erna Ogden | 7 | Daughter | — | Illinois |
Related Census Records
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)