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John Brooks — 1940 US Census Record
Linked across censuses1940 United States Federal Census · District-Of-Columbia-County, District of Columbia
Our Model Tree links this John Brooks across the 1920, 1930 and 1940 US Censuses in District-Of-Columbia-County, District of Columbia (XGBoost, ~Confirmed) — first a head (b.~1880), then head of a 7-person household.
Age 60
b. ~1880
Male
Head
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | District-Of-Columbia-County, District of Columbia |
| Surname | Brooks |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Washington |
| 1935 Residence (County) | District Of Columbia |
| Additional Details | |
| Occupation | Janitor |
| Industry | apt. house |
| Class of Worker | PW |
| Hours Worked | 84 |
| Income (1939) | 360 |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Janitor |
| Township / Ward | Washington |
| Est. Birth Year | ~1880 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| John Brooks | Head | — | 60 | ~1880 |
| Mary Brooks | Other | — | 25 | ~1915 |
| Bernard Brooks | Other | — | 4 | ~1936 |
| Margaret Brooks | Other | — | 19 | ~1921 |
| Bernard Brooks | Son | — | 24 | ~1916 |
| Thomas Brooks | Son | — | 26 | ~1914 |
| Margaret Brooks | Spouse | — | 58 | ~1882 |
Census Appearances
1920
X, District …
Head, age 40
X, District of Columbia · implied b. ~1880 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brooks |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | laborer |
| Industry | odd jobs |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
None, District …
Head, age 52
None, District of Columbia · implied b. ~1878 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brooks |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 20 |
| Father's Birthplace | District of Col. |
| Mother's Birthplace | Maryland |
| Occupation | Laborer |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | $25 |
| Radio Set | No |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
District-Of-Columbia-County, District …
Head, age 60
District-Of-Columbia-County, District of Columbia · implied b. ~1880 — 7 household members
| Surname | Brooks |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Washington |
| 1935 Residence (County) | District Of Columbia |
| Occupation | Janitor |
| Industry | apt. house |
| Class of Worker | PW |
| Hours Worked | 84 |
| Income (1939) | 360 |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 3 locations, using XGBoost record linkage.
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This person
Anchor record
John Brooks
Head · 1940 · age 60 · b. ~1880 · District of Columbia
★ 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 — District-Of-Columbia-County, District of Columbia
Open full size
1940 US Federal Census — District-Of-Columbia-County, District of Columbia
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00553-00723)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Agnes S Williamson | 48 | Wife | Guide | Maryland |
| 2 | J. Wilfred Williamson | 53 | Brother | — | D.C. |
| 3 | Hallie Lazell | 28 | Lodge | Nurse Jr | Vermont |
| 4 | Hannah V. Lynn | 63 | Head | Saleslady | D.C. |
| 5 | Nellie M. Long | 55 | Sister | — | D.C. |
| 6 | Patrick Ford | 74 | Lodge | — | Ireland |
| 7 | C. M. Yeatley | 55 | Head | Clerk (Agent) | Kentucky |
| 8 | Gregory M. Jr. Bready | 27 | Lodge | — | Kentucky |
| 9 | Donald D. Petitt | 46 | Head | Maintenance | Pennsylvania |
| 10 | Elizabeth M. Petitt | 38 | Wife | Hostess | Virginia |
| 11 | D. Foster Richards | 54 | Head | Auto Repairer | New York |
| 12 | Dorothy Richards | 50 | Wife | Glassworker | Kansas |
| 13 | Nellie Beach | 34 | Head | Inspector | Virginia |
| 14 | John Holt | 35 | Lodge | Clerk | Md. |
| 15 | Victor C. Viers | 28 | Lodge | Draughtsman | Pa. |
| 16 | John Brooks THIS PERSON | 60 | Head | Janitor | Maryland |
| 17 | Margaret O. Brooks | 58 | Wife | — | Maryland |
| 18 | Thomas J. Brooks | 26 | Son | Chauffeur | D.C. |
| 19 | Bernard Brooks | 24 | Son | Driver | D.C. |
| 20 | Bernard Jr. Brooks | 4 | Grandson | — | D.C. |
| 21 | Margaret Brooks | 19 | Lodger | — | D.C. |
| 22 | Mary Brooks | 25 | Lodger | Domestic | Maryland |
| 23 | Mary Hallett | 54 | Head | Operator (Tel) | Maryland |
| 24 | William H. Hallett | 30 | Son | Salesman | D.C. |
| 25 | Richard D. Hallett | 28 | Son | Automobile Operator | D.C. |
| 26 | John Hallett | 25 | Son | Clerk | D.C. |
| 27 | Charles W. Gosnell | 64 | Head | Model Maker | Maryland |
| 28 | Eleanor Gosnell | 58 | Wife | — | Virginia |
| 29 | Charles W. Jr. Gosnell | 25 | Son | Accountant | D.C. |
| 30 | Hallie Jones | 70 | Head | Bookkeeper | D.C. |
| 31 | Emma Schroeder | 59 | Lodger | Grad. Nurse | Pennsylvania |
| 32 | Edward Newland | 40 | Head | Plate Printer | D.C. |
| 33 | Mary S. Newland | 41 | Wife | — | D.C. |
| 34 | Virginia M. Newland | 18 | Daughter | — | D.C. |
| 35 | Francis Y. Newland | 15 | Son | — | D.C. |
| 36 | Anna S. Dilger | 55 | Head | — | Austria |
| 37 | Paul Dilger | 32 | Son | Electrician | Virginia |
| 38 | Robert J. Carey | 27 | Lodger | Attorney | Pennsylvania |
| 39 | Clarence Pettit | 33 | Head | Real Estate | Ohio |
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)