WB
William Brooks — 1940 US Census Record
Model Tree available1940 United States Federal Census · Bartholomew-County, Indiana
Our Model Tree links this William Brooks across the 1920, 1930 and 1940 US Censuses in Bartholomew-County, Indiana (XGBoost, ~Confirmed), with identified parents Lyman & Harry — first a son (b.~1918), then head of a 7-person household.
Age 22
b. ~1918
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Bartholomew-County, Indiana |
| Surname | Brooks |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | East Columbus |
| 1935 Residence (County) | Bartholomew |
| Additional Details | |
| Occupation | Inspector |
| Industry | Diesel Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1000 |
| Highest Grade | C-2 |
| 1935 Residence | Same house |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Inspector |
| Township / Ward | East Columbus |
| Est. Birth Year | ~1918 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Harry Brooks | Head | — | 46 | ~1894 |
| Robert Mcclure | Other | — | 14 | ~1926 |
| Clarence Brooks | Son | — | 9 | ~1931 |
| Harry Brooks | Son | — | 17 | ~1923 |
| William Brooks | Son | — | 22 | ~1918 |
| Robert Brooks | Son | — | 14 | ~1926 |
| Ina Brooks | Spouse | — | 44 | ~1896 |
Census Appearances
1920
Bartholomew, Indiana
Son, age 1
Bartholomew, Indiana · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brooks |
| Given Name | William A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Bartholomew, Indiana
Son, age 12
Bartholomew, Indiana · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brooks |
| Given Name | Willard E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Bartholomew-County, Indiana
Son, age 22
Bartholomew-County, Indiana · implied b. ~1918 — 7 household members
| Surname | Brooks |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | East Columbus |
| 1935 Residence (County) | Bartholomew |
| Occupation | Inspector |
| Industry | Diesel Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1000 |
| Highest Grade | C-2 |
| 1935 Residence | Same house |
| 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 William Brooks across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Lyman Brooks (~0.92 confidence) and father Harry Brooks (~0.92 confidence) and mother Ina Brooks (~0.92 confidence) and mother Grace Brooks (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Lyman Brooks
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Harry Brooks
b. ~1894
Source father
● Household
· direct · ~0.92
Mother
Ina Brooks
b. ~1896
Source mother
● Household
· direct · ~0.92
Mother
Grace Brooks
b. ~1901
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Brooks
Son · 1940 · age 22 · b. ~1918 · Indiana
★ You are viewing this record
Sibling
Harry Brooks
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Brooks
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clarence Brooks
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 — Bartholomew-County, Indiana
Open full size
1940 US Federal Census — Bartholomew-County, Indiana
Page Contents
30 people indexed on this census page (nara:1940:m-t0627-01026-00462)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Margie Stuckey | 14 | Daughter | — | Missouri |
| 42 | Shirley Stuckey | 7 | Daughter | — | Missouri |
| 43 | Roy E. Stuckey | 3 | Son | — | Indiana |
| 44 | Charles C. Thomas | 62 | Head | Carpenter | Indiana |
| 45 | Mary Thomas | 53 | Wife | — | Indiana |
| 46 | Marshall N. Thomas | 33 | Son | Machinist | Indiana |
| 47 | Edward Steinkamp | 49 | Head | Part-Owner | Indiana |
| 48 | Esther Steinkamp | 36 | Wife | — | Indiana |
| 49 | Elizabeth Steinkamp | 13 | Daughter | — | Indiana |
| 50 | Darrell E. Steinkamp | 8 | Son | — | Indiana |
| 51 | Lina B. Clayton | 60 | Head | — | Indiana |
| 52 | Mary B. Wint | 76 | Head | — | Germany |
| 53 | Carl H. Pfeifer | 49 | Head | Foreman | Indiana |
| 54 | Ieva C. Pfeifer | 49 | Wife | — | Indiana |
| 55 | Carl H. Pfeifer | 19 | Son | Enumerator | Indiana |
| 56 | William Schwartzkopf | 34 | Head | Clerk | Indiana |
| 57 | Lillie Schwartzkopf | 34 | Wife | — | Indiana |
| 58 | Clarence Schwartzkopf | 14 | Son | — | Indiana |
| 59 | Mary M. Schwartzkopf | 12 | Daughter | — | Indiana |
| 60 | Jeanette Schwartzkopf | 10 | Daughter | — | Indiana |
| 61 | Kathryn Schwartzkopf | 8 | Daughter | — | Indiana |
| 62 | Ruth Ann Schwartzkopf | 3 | Daughter | — | Indiana |
| 63 | David H. Schwartzkopf | 1 | Son | — | Indiana |
| 64 | Harry Brooks | 46 | Head | Asst. Plant Manager | Indiana |
| 65 | Ina Brooks | 44 | Wife | — | Indiana |
| 66 | William Brooks THIS PERSON | 22 | Son | Inspector | Indiana |
| 67 | Harry Jr. Brooks | 17 | Son | — | Indiana |
| 68 | Robert Brooks | 14 | Son | — | Indiana |
| 69 | Clarence Brooks | 9 | Son | — | Indiana |
| 70 | Robert Mcclure | 14 | Step-Son | — | Indiana |
Pedigree Summary
William + 3 siblings
Gen 1 · 4 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)