LB
Lloyd Brown — 1940 US Census Record
Model Tree available1940 United States Federal Census · Will-County, Illinois
Our Model Tree links this Lloyd Brown across the 1920, 1930 and 1940 US Censuses in Will-County, Illinois (XGBoost, ~Confirmed), with identified parents Benjamin & Frank — first a son (b.~1914), then head of a 7-person household.
Age 26
b. ~1914
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Will-County, Illinois |
| Surname | Brown |
| Given Name | Lloyd |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Plainfield |
| 1935 Residence (County) | Will |
| Additional Details | |
| Occupation | Assistant to Engineer |
| Industry | Utility Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1800 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Assistant To Engineer |
| Township / Ward | Plainfield |
| Est. Birth Year | ~1914 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Lloyd | Age | Birth yr |
|---|---|---|---|---|
| Franklin Brown | Son | — | 10 | ~1930 |
| Edward Brown | Son | — | 20 | ~1920 |
| Frank Brown | Head | — | 54 | ~1886 |
| Russell Brown | Son | — | 21 | ~1919 |
| Jane Brown | Daughter | — | 13 | ~1927 |
| Lloyd Brown | Son | — | 26 | ~1914 |
| Blanche Brown | Spouse | — | 46 | ~1894 |
Census Appearances
1920
Kendall, Illinois
Son, age 5
Kendall, Illinois · implied b. ~1915 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Loyd |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Indiana |
| Occupation | none |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Will, Illinois
Son, age 16
Will, Illinois · implied b. ~1914 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brown |
| Given Name | Lloyd |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Will-County, Illinois
Son, age 26
Will-County, Illinois · implied b. ~1914 — 7 household members
| Surname | Brown |
| Given Name | Lloyd |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Plainfield |
| 1935 Residence (County) | Will |
| Occupation | Assistant to Engineer |
| Industry | Utility Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1800 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| 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 Lloyd Brown across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father Benjamin Brown (~0.92 confidence) and father Frank Brown (~0.92 confidence) and father Simpson Brown (~0.92 confidence) and mother Blanche Brown (~0.92 confidence) and mother Blanche Brown (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Benjamin Brown
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Frank Brown
b. ~1886
Source father
● Household
· direct · ~0.92
Father
Simpson Brown
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Blanche Brown
b. ~1894
Source mother
● Household
· direct · ~0.92
Mother
Blanche Brown
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Lloyd Brown
Son · 1940 · age 26 · b. ~1914 · Illinois
★ You are viewing this record
Sibling
Edward Brown
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Russell Brown
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jane Brown
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Franklin Brown
Sibling · 1940 · age 10
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 — Will-County, Illinois
Open full size
1940 US Federal Census — Will-County, Illinois
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-00909-00782)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Dorothy Heintz | 30 | Daughter | Stenographer | Illinois |
| 42 | James Heintz | 27 | Son | Maintenance | Illinois |
| 43 | John Heintz | 18 | Son | Worker | Illinois |
| 44 | Frank Brown | 54 | Head | Farmer | Illinois |
| 45 | Blanche Brown | 46 | Wife | — | Illinois |
| 46 | Lloyd Brown THIS PERSON | 26 | Son | Assistant To Engineer | Illinois |
| 47 | Russell Brown | 21 | Son | Farm Hand | Illinois |
| 48 | Edward Brown | 20 | Son | Farm Hand | Illinois |
| 49 | Jane Brown | 13 | Daughter | — | Illinois |
| 50 | Franklin Brown | 10 | Son | — | Illinois |
| 51 | Henry Ryan | 46 | Head | Contractor | Sweden |
| 52 | Selma Ryan | 45 | Wife | — | Illinois |
| 53 | Homer Ryan | 25 | Son | Contractor | Illinois |
| 54 | Hershel Ryan | 21 | Son | — | Illinois |
| 55 | Donna Ryan | 9 | Daughter | — | Illinois |
| 56 | Harry Sich | 36 | Head | Nr Professional | Illinois |
| 57 | Bernadette Sich | 28 | Wife | — | Illinois |
| 58 | Axel Johnson | 40 | Head | Welder | Illinois |
| 59 | Ada Johnson | 39 | Wife | — | Illinois |
| 60 | Wm Brockman | 18 | Brother-in-law | Welder | Illinois |
| 61 | Wm Sr. Brockman | 74 | Father-in-law | — | Germany |
| 62 | Lawrence Berlinski | 58 | Head | Farmer | Poland |
| 63 | Mary Berlinski | 59 | Wife | — | Poland |
| 64 | John Von Esch | 60 | Head | Farmer | Illinois |
| 65 | Martha Von Esch | 54 | Wife | — | Illinois |
| 66 | Wm Spencer | 69 | Hired man | Farmer | England |
| 67 | Sara Spencer | 50 | Housekeeper | — | Illinois |
| 68 | Joe Sinalor | 52 | Farm hand | Farm Hand | Illinois |
| 69 | Clarence Schroeder | 31 | Head | Estimator | Illinois |
| 70 | Florence Schroeder | 32 | Wife | Clerk | Illinois |
| 71 | Claude Mcallister | 60 | Head | Farmer | Illinois |
| 72 | Dora Mcallister | 58 | Wife | — | England |
| 73 | Edward Mcallister | 26 | Son | Farmer | Illinois |
| 74 | Joyce Mcallister | 16 | Daughter | — | Illinois |
| 75 | Lola May Mcallister | 15 | Daughter | — | Illinois |
| 76 | Grace Mcallister | 20 | Daughter | — | Illinois |
| 79 | Richard Bradys | 70 | Head | Farmer | Illinois |
| 80 | Mattie Bradys | 60 | Wife | — | Illinois |
Pedigree Summary
Lloyd + 4 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)