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Lester Brown — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Lester Brown across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 9-person household.
Age 18
b. ~1922
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Brown |
| Given Name | Lester |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| Additional Details | |
| Occupation | wall washer |
| Industry | Home Decorating |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 0 |
| Highest Grade | Hs 2 |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Wall Washer |
| Township / Ward | Chicago |
| Est. Birth Year | ~1922 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Lester | Age | Birth yr |
|---|---|---|---|---|
| Vincent Brown | Son | — | 22 | ~1918 |
| Gwendolyn Brown | Daughter | — | 6 | ~1934 |
| Lester Brown | Son | — | 18 | ~1922 |
| Thomas Brown | Son | — | 16 | ~1924 |
| Narcisse Brown | Son | — | 20 | ~1920 |
| Jerome Brown | Son | — | 13 | ~1927 |
| Lester Brown | Head | — | 48 | ~1892 |
| Patricia Brown | Daughter | — | 11 | ~1929 |
| Gwendolyn Brown | Spouse | — | 47 | ~1893 |
Census Appearances
1930
Cook, Illinois
Son, age 8
Cook, Illinois · implied b. ~1922 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Lester |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Michigan |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 18
Cook-County, Illinois · implied b. ~1922 — 9 household members
| Surname | Brown |
| Given Name | Lester |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| Occupation | wall washer |
| Industry | Home Decorating |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 0 |
| Highest Grade | Hs 2 |
| 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 Lester Brown across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Lester Brown
Son · 1940 · age 18 · b. ~1922 · Illinois
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Sibling
Thomas Brown
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Brown
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jerome Brown
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gwendolyn Brown
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vincent Brown
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Narcisse Brown
Sibling · 1940 · age 20
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 — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00933-00833)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Rae Johnson | 62 | wife | — | Sweden |
| 42 | Harold Johnson | 36 | son | Electrician | Illinois |
| 43 | Elaine Johnson | 16 | daughter | — | Illinois |
| 44 | Fred Gatbert | 45 | Head | Nightwatchman | Indiana |
| 45 | Leona Gatbert | 42 | wife | — | Indiana |
| 46 | Anahe Manzenberger | 22 | daughter | File Clerk | Indiana |
| 47 | John Manzenberger | 4 | grandson | — | Illinois |
| 48 | Lester Brown | 48 | Head | Switchman | Illinois |
| 49 | Gwendolyn Brown | 47 | wife | Housework | Illinois |
| 50 | Vincent Brown | 22 | son | Stockman | Illinois |
| 51 | Narcisse Brown | 20 | son | Stockman | Illinois |
| 52 | Lester Brown THIS PERSON | 18 | son | Wall Washer | Illinois |
| 53 | Thomas Brown | 16 | son | — | Illinois |
| 54 | Jerome Brown | 13 | son | — | Illinois |
| 55 | Patricia Brown | 11 | daughter | — | Illinois |
| 56 | Gwendolyn Brown | 6 | daughter | — | Illinois |
| 57 | Walter Plank | 39 | Head | Electrician | Ohio |
| 58 | Ella Plank | 42 | wife | — | Illinois |
| 59 | Donald Plank | 15 | son | Newsboy | Illinois |
| 60 | Jean Plank | 9 | daughter | — | Illinois |
| 61 | Harry B Wilson | 34 | Head | Salesman | Illinois |
| 62 | Lucille Wilson | 32 | wife | — | Illinois |
| 63 | William Wilson | 8 | son | — | Illinois |
| 64 | James E Wilson | 4 | son | — | Illinois |
| 65 | Otis Woods | 40 | Head | Key Punch Operator | Illinois |
| 66 | Mae Woods | 38 | wife | — | Illinois |
| 67 | Kenneth Woods | 15 | son | Delivery Boy | Illinois |
| 68 | Floyd Woods | 14 | son | — | Illinois |
| 69 | Verna Woods | 4 | daughter | — | Illinois |
| 70 | James Meredith | 46 | Head | Die Caster | Maryland |
| 71 | Margaret Meredith | 45 | wife | Bookkeeper | Illinois |
| 72 | Eleanor Bergendahl | 19 | daughter | — | Illinois |
| 73 | Margaret Guldager | 84 | mother in law | — | Sweden |
| 74 | Jacob Pirofalo | 53 | Head | Pharmacist | Illinois |
| 75 | Ruth M Pirofalo | 46 | wife | — | Illinois |
| 76 | Ruth A Pirofalo | 18 | daughter | — | Illinois |
| 77 | Clara Sieverth | 44 | Lodger | Secretary | Illinois |
| 78 | Albert Pieper | 77 | Head | Machinist | Germany |
| 79 | Carolyn Pieper | 75 | wife | — | Illinois |
| 80 | Edwin Pieper | 43 | son | Machinist | 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)