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John Brooks — 1940 US Census Record
Model Tree available1940 United States Federal Census · Delaware-County, Pennsylvania
Our Model Tree links this John Brooks across the 1920, 1930 and 1940 US Censuses in Delaware-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents S & John — first a son (b.~1910), then head of a 3-person household.
Age 30
b. ~1910
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Delaware-County, Pennsylvania |
| Surname | Brooks |
| Given Name | John A. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Upper Darby Twp |
| 1935 Residence (County) | Delaware |
| Additional Details | |
| Occupation | Compositor |
| Industry | Bulletin news paper |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 3104 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Compositor |
| Township / Ward | Upper Darby Twp |
| Est. Birth Year | ~1910 |
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 |
|---|---|---|---|---|
| S Brooks | Head | — | 71 | ~1869 |
| John Brooks | Son | — | 30 | ~1910 |
| Margaret Brooks | Spouse | — | 66 | ~1874 |
Census Appearances
1920
Philadelphia, Pennsylvania
Son, age 12
Philadelphia, Pennsylvania · implied b. ~1908 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brooks |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Philadelphia, Pennsylvania
Son, age 21
Philadelphia, Pennsylvania · implied b. ~1909 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brooks |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Laborer |
| Industry | Hardwood Floor |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Delaware-County, Pennsylvania
Son, age 30
Delaware-County, Pennsylvania · implied b. ~1910 — 3 household members
| Surname | Brooks |
| Given Name | John A. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Upper Darby Twp |
| 1935 Residence (County) | Delaware |
| Occupation | Compositor |
| Industry | Bulletin news paper |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 3104 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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. Identified parents: father S Brooks (~0.92 confidence) and father John Brooks (~0.92 confidence) and mother Margaret Brooks (~0.92 confidence) and father John Brooks (~0.92 confidence) and mother Isabella Brooks (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
S Brooks
b. ~1869
Source father
● Household
· direct · ~0.92
Father
John Brooks
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Margaret Brooks
b. ~1874
Source mother
● Household
· direct · ~0.92
Father
John Brooks
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Isabella Brooks
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Brooks
Son · 1940 · age 30 · b. ~1910 · Pennsylvania
★ 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 — Delaware-County, Pennsylvania
Open full size
1940 US Federal Census — Delaware-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03497-00731)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank X. Jackson | 43 | Head | Auditor | Pennsylvania |
| 2 | Kattie D. Jackson | 47 | Wife | — | Pennsylvania |
| 3 | Jean Jackson | 16 | daughter | — | California |
| 4 | Amelia Driesach | 71 | mother-in-law | — | Pennsylvania |
| 5 | Milton M. Burton | 34 | Head | Underwriter | New Jersey |
| 6 | Martha M. Burton | 28 | Wife | — | New Jersey |
| 7 | Ruth M. Burton | 5 | daughter | — | Pennsylvania |
| 8 | Frank M. Burton | 2 | son | — | Pennsylvania |
| 9 | Thomas J. Mcdermott | 32 | Head | Radio Time Buyer | New York |
| 10 | Dorothy P. Mcdermott | 31 | wife | — | New York |
| 11 | Maureen Mcdermott | 5 | daughter | — | New Jersey |
| 12 | Henrietta Derrick | 54 | Head | — | Pennsylvania |
| 13 | Mary C. Bayha | 72 | sister | — | Pennsylvania |
| 14 | Anna R. Pitz | 70 | sister | — | Pennsylvania |
| 15 | Clara C. Schoelhoff | 56 | sister | — | Pennsylvania |
| 16 | S. J. Brooks | 71 | Head | — | New Jersey |
| 17 | Margaret E. Brooks | 66 | wife | — | New Jersey |
| 18 | John A. Brooks THIS PERSON | 30 | son | Compositor | Pennsylvania |
| 19 | George B. Onimus | 82 | Head | — | Pennsylvania |
| 20 | Beatrice Printz | 44 | daughter | Sales | Pennsylvania |
| 21 | Raymond Printz | 40 | son-in-law | Electrician | Pennsylvania |
| 22 | Joan Handley | 15 | step grand daughter | — | Pennsylvania |
| 23 | Harry A. Hirth | 50 | Head | Sales | Pennsylvania |
| 24 | Dorothy L. Hirth | 35 | wife | Office Manager | Pennsylvania |
| 25 | Harry Jr. Hirth | 23 | son | Optician | Pennsylvania |
| 26 | Elizabeth Hirth | 21 | daughter | Stenographer | Pennsylvania |
| 27 | Daniel B. Shelly | 73 | father-in-law | — | Pennsylvania |
| 28 | Anna K. Shelly | 65 | mother-in-law | — | Pennsylvania |
| 29 | S. Bowman Craverling | 53 | Head | Salesman | Montana |
| 30 | Bertha P. Craverling | 52 | wife | — | Pennsylvania |
| 31 | Mary Craverling | 21 | daughter | New Worker | Pennsylvania |
| 32 | Emilie Craverling | 19 | daughter | — | Pennsylvania |
| 33 | Elizabeth Craverling | 85 | mother | — | England |
| 34 | Jean Craverling | 56 | sister | Sales | Pennsylvania |
| 35 | H. M. Danby | 46 | Head | Auto Mechanic | Pennsylvania |
| 36 | Minnie S. Danby | 44 | wife | Beautician | Austria |
| 37 | Miss Muriel Danby | 23 | daughter | Clerk | Pennsylvania |
| 38 | William J. Kelly | 52 | Head | Clerk | Pennsylvania |
| 39 | Elizabeth C. Kelly | 48 | wife | — | Pennsylvania |
| 40 | Elizabeth C. Kelly | 22 | daughter | Stenographer | Pennsylvania |
Related Census Records
Pedigree Summary
John
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)