JB
John Brooks — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Peoria-County, Illinois
Our Model Tree links this John Brooks across the 1920, 1930 and 1940 US Censuses in Peoria-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1885), then head of a 3-person household.
Age 55
b. ~1885
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Peoria-County, Illinois |
| Surname | Brooks |
| Given Name | John C |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Peoria Heights Village |
| 1935 Residence (County) | Peoria |
| Additional Details | |
| Occupation | Night Watchman |
| Industry | Bank |
| Class of Worker | PW |
| Hours Worked | 17 |
| Income (1939) | 602 |
| Highest Grade | No 7 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Night Watchman |
| Township / Ward | Peoria Heights Village |
| Est. Birth Year | ~1885 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Brooks | Head | — | 55 | ~1885 |
| Howard Brooks | Son | — | 30 | ~1910 |
| Mamie Brooks | Spouse | — | 55 | ~1885 |
Census Appearances
1920
Peoria, Illinois
Head, age 35
Peoria, Illinois · implied b. ~1885 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brooks |
| Given Name | John C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Moulder |
| Industry | Stove Works |
| 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
Peoria, Illinois
Head, age 45
Peoria, Illinois · implied b. ~1885 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brooks |
| Given Name | John C |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 22 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Moulder |
| Industry | Brass Fdry |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 3800 |
| Radio Set | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Peoria-County, Illinois
Head, age 55
Peoria-County, Illinois · implied b. ~1885 — 3 household members
| Surname | Brooks |
| Given Name | John C |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Peoria Heights Village |
| 1935 Residence (County) | Peoria |
| Occupation | Night Watchman |
| Industry | Bank |
| Class of Worker | PW |
| Hours Worked | 17 |
| Income (1939) | 602 |
| Highest Grade | No 7 |
| 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 John Brooks across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Brooks
Head · 1940 · age 55 · b. ~1885 · 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 — Peoria-County, Illinois
Open full size
1940 US Federal Census — Peoria-County, Illinois
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00865-00358)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Diana M Hitzig | 12 | Daughter | — | Illinois |
| 2 | Ivor H Hegstein | 31 | Head | Chauffeur | Illinois |
| 3 | Ann Hegstein | 27 | Wife | Clerk | Illinois |
| 4 | Jacob Widdows | 68 | Head | Janitor | Maryland |
| 5 | Ida Widdows | 59 | Wife | — | Kansas |
| 6 | Harold Widdows | 30 | Son | Salesman | Illinois |
| 7 | Owen Wagner | 26 | Lodger | Apprentice | Indiana |
| 8 | Melba Wagner | 33 | Lodger | Saleslady | Illinois |
| 9 | Herbert W Widdows | 27 | Head | Truck Driver | Illinois |
| 10 | Marcella Widdows | 26 | Wife | — | Illinois |
| 11 | Joann P Widdows | 6 | Daughter | — | Illinois |
| 12 | Herbert L Widdows | 4 | Son | — | Illinois |
| 13 | Fred R Blade | 31 | Head | Hoisting Engineer | Illinois |
| 14 | Esther Blade | 24 | Wife | — | Illinois |
| 15 | Shirley M Blade | 11 | Daughter | — | Illinois |
| 16 | Donald Blade | 6 | Son | — | Illinois |
| 17 | Phanka Blade | 5 | Daughter | — | Illinois |
| 18 | Lorane Blade | 2 | Daughter | — | Illinois |
| 20 | Roy Pillott | 35 | Head | Auto Mechanic | Illinois |
| 21 | Roy Jr. Pillott | 11 | Son | — | Illinois |
| 22 | Minnie Keefauver | 55 | Mother | — | Ohio |
| 23 | Donald Kunard | 30 | Head | Salesman Driver | Kansas |
| 24 | Frances B Kunard | 30 | Wife | — | Illinois |
| 25 | Donald D Kunard | 12 | Son | — | Illinois |
| 26 | Lloyd Armstrong | 44 | Head | Laborer | Illinois |
| 27 | Mary Armstrong | 34 | Wife | Laborer | Syria |
| 28 | Alice Jean Armstrong | 13 | Daughter | — | Illinois |
| 29 | John C Brooks THIS PERSON | 55 | Head | Night Watchman | Illinois |
| 30 | Mamie M Brooks | 55 | Wife | — | Illinois |
| 31 | Howard E Brooks | 30 | Son | — | Illinois |
| 32 | Bernard Palmer | 43 | Head | Singer | New York |
| 33 | Dorothy B Palmer | 43 | Wife | Commercial Artist | England |
| 34 | Bernard J Palmer | 19 | Son | — | Missouri |
| 35 | Mary Alice Palmer | 9 | Daughter | — | Illinois |
| 36 | Elmer Hay | 44 | Head | Supt. Maintenance | Kentucky |
| 37 | Gladys X Hay | 44 | Wife | — | Illinois |
| 38 | Kenneth Widdows | 26 | Head | Bundeler | Illinois |
| 39 | Wilhelmina Widdows | 26 | Wife | — | Illinois |
| 40 | Lydia Bowers | 53 | Mother-in-law | Cook | Illinois |
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)