HB
Harry Brooks — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jefferson-County, Illinois
Our Model Tree links this Harry Brooks across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1883), then head of a 3-person household.
Age 57
b. ~1883
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Illinois |
| Surname | Brooks |
| Given Name | Harry |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Mt. Vernon |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Occupation | Insurance Agt. |
| Industry | Mutual Life |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 780 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Insurance Agt. |
| Township / Ward | Mt Vernon |
| Est. Birth Year | ~1883 |
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 Harry | Age | Birth yr |
|---|---|---|---|---|
| Harry Brooks | Head | — | 57 | ~1883 |
| Margaret Brooks | Daughter | — | 23 | ~1917 |
| Altha Brooks | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Jefferson, Illinois
Head, age 35
Jefferson, Illinois · implied b. ~1885 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brooks |
| Given Name | Harry |
| 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 | Agent |
| Industry | Insurance |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Jefferson, Illinois
Head, age 47
Jefferson, Illinois · implied b. ~1883 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brooks |
| Given Name | Harry |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 22 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Core Maker |
| Industry | Brooder Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 2500 |
| Radio Set | R |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Jefferson-County, Illinois
Head, age 57
Jefferson-County, Illinois · implied b. ~1883 — 3 household members
| Surname | Brooks |
| Given Name | Harry |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Mt. Vernon |
| 1935 Residence (County) | Jefferson |
| Occupation | Insurance Agt. |
| Industry | Mutual Life |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 780 |
| Highest Grade | H-4 |
| 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 Harry Brooks across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Harry Brooks
Head · 1940 · age 57 · b. ~1883 · Illinois
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Jefferson-County, Illinois
Open full size
1940 US Federal Census — Jefferson-County, Illinois
Page Contents
37 people indexed on this census page (nara:1940:m-t0627-00816-00569)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Linda Huffstetler | 5 | Daughter | — | Illinois |
| 42 | Virgil Lee | 58 | Head | Clerk | Illinois |
| 43 | Janet Lee | 58 | Wife | — | Illinois |
| 44 | Luke L. Lincey | 28 | Head | Oil Field | Oklahoma |
| 45 | Marie Lincey | 24 | Wife | — | Oklahoma |
| 46 | Carl Bartrake | 22 | Brother-in-law | Laborer | Oklahoma |
| 47 | Blake G. Nichols | 38 | Head | Driller | Oklahoma |
| 48 | Edith Nichols | 38 | Wife | — | Oklahoma |
| 49 | Henry B. Naston | 21 | Head | Clerk | Oklahoma |
| 50 | Ethel M. Naston | 22 | Wife | Stenographer | Illinois |
| 51 | N. L. Mehan | 27 | Head | Driller | Oklahoma |
| 52 | Mittie Mehan | 26 | Wife | — | Oklahoma |
| 53 | Harry Brooks THIS PERSON | 57 | Head | Insurance Agt. | Illinois |
| 54 | Altha Brooks | 53 | Wife | — | Illinois |
| 55 | Margaret Brooks | 23 | Daughter | Stenographer | Illinois |
| 56 | Edmund Organ | 22 | Head | Carpenter | Illinois |
| 57 | Velma Organ | 22 | Wife | — | Illinois |
| 58 | Guy Vaughan | 33 | Head | Oil Field | Kentucky |
| 59 | Lenora Vaughan | 26 | Wife | — | Kentucky |
| 60 | Jerry Vaughan | 9 | Daughter | — | Illinois |
| 61 | Carlyn Vaughan | 5 | Daughter | — | Illinois |
| 63 | Elmo Rector | 54 | Head | Taxi Driver | Illinois |
| 64 | Effie Rector | 50 | Wife | — | Illinois |
| 65 | William Dotten | 48 | Head | Fitter Steel | Michigan |
| 66 | Marie Dotten | 50 | Wife | — | Illinois |
| 68 | J. W. Lane | 43 | Head | Clerk | Illinois |
| 69 | John W. Mcnutt | 53 | Lodger | — | Colorado |
| 70 | Leaty Pribble | 37 | Lodger | Cook | Texas |
| 71 | Clair Divens | 35 | Lodger | Truck Driver | Iowa |
| 72 | Roy Stratton | 69 | Lodger | — | Iowa |
| 73 | Edward Rice | 56 | Lodger | Rep. Player | Vermont |
| 74 | Herbert E. Ford | 35 | Lodger | Watch Maker | Minnesota |
| 75 | Nellie Crane | 42 | Head | Kitchen Helper | Illinois |
| 76 | Mildred Crane | 19 | Daughter | Housework | Illinois |
| 78 | Hubert Grandol | 39 | Head | Painter | Illinois |
| 79 | Laura B. Grandol | 32 | Wife | Housework | Illinois |
| 80 | Roberta Grandol | 13 | Daughter | — | 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)