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Frank Brooks — 1940 US Census Record
Model Tree available1940 United States Federal Census · Delaware-County, Pennsylvania
Our Model Tree links this Frank Brooks across the 1920, 1930 and 1940 US Censuses in Delaware-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Emily & William — first a son (b.~1911), then head of a 4-person household.
Age 29
b. ~1911
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Delaware-County, Pennsylvania |
| Surname | Brooks |
| Given Name | Frank D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Ridley Park Boro. |
| 1935 Residence (County) | DELAWARE |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Ridley Park Boro |
| Est. Birth Year | ~1911 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Frank | Age | Birth yr |
|---|---|---|---|---|
| Frank Brooks | Son | — | 29 | ~1911 |
| George Brooks | Son | — | 34 | ~1906 |
| William Brooks | Head | — | 65 | ~1875 |
| Emily Brooks | Spouse | — | 65 | ~1875 |
Census Appearances
1920
Delaware, Pennsylvania
Son, age 9
Delaware, Pennsylvania · implied b. ~1911
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Brooks |
| Given Name | Frank D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Delaware |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Delaware, Pennsylvania
Son, age 19
Delaware, Pennsylvania · implied b. ~1911 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brooks |
| Given Name | Frank D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Delaware |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Delaware-County, Pennsylvania
Son, age 29
Delaware-County, Pennsylvania · implied b. ~1911 — 4 household members
| Surname | Brooks |
| Given Name | Frank D. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Ridley Park Boro. |
| 1935 Residence (County) | DELAWARE |
| Highest Grade | No 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 Frank Brooks across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Emily Brooks (~0.92 confidence) and father William Brooks (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Emily Brooks
b. ~1875
Source mother
● Household
· direct · ~0.92
Father
William Brooks
b. ~1875
Source father
● Household
· direct · ~0.92
This person
Anchor record
Frank Brooks
Son · 1940 · age 29 · b. ~1911 · Pennsylvania
★ You are viewing this record
Sibling
George Brooks
Sibling · 1940 · age 34
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 — 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-t0627-03495-00652)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Walter D. Bryson | 62 | Head | Accountant | Pennsylvania |
| 42 | Anna L. Justice | 71 | Housekeeper | Housekeeper | New York |
| 43 | Edwin Greenawalt | 26 | Head | Salesman | Pennsylvania |
| 44 | Grace Greenawalt | 20 | Wife | — | Pennsylvania |
| 45 | Sue Greenawalt | 0 | Daughter | — | Pennsylvania |
| 46 | Axel Olander | 72 | Head | Mechanical Draftsman | Sweden |
| 47 | Mabel Olander | 36 | Wife | — | New York |
| 48 | Robert Olander | 10 | Son | — | Pennsylvania |
| 49 | Mary Ann Olander | 4 | Daughter | — | New York |
| 50 | William E. Brooks | 65 | Head | — | Maryland |
| 51 | Emily D. Brooks | 65 | Wife | — | Delaware |
| 52 | George R. Brooks | 34 | Son | Bond Trader | Pennsylvania |
| 53 | Frank D. Brooks THIS PERSON | 29 | Son | — | Pennsylvania |
| 54 | Addie R. Lappin | 68 | Head | — | Delaware |
| 55 | F. Wallace Lappin | 32 | Son | Automotive Sales | Delaware |
| 56 | Dorothy W. Lappin | 31 | Daughter-in-law | — | Pennsylvania |
| 57 | Robert W. Lappin | 4 | Grandson | — | Pennsylvania |
| 58 | Warren A. Lappin | 1 | Grandson | — | Pennsylvania |
| 59 | Nelson M. Downes | 51 | Head | Automotive Sales | Pennsylvania |
| 60 | Carolyn R. Downes | 48 | Wife | — | New Jersey |
| 61 | Eleanor R. Downes | 21 | Daughter | — | Pennsylvania |
| 62 | John B. Downes | 18 | Son | — | Pennsylvania |
| 63 | Anna M. Hetzel | 77 | Head | — | Pennsylvania |
| 64 | Caroline K. Hetzel | 72 | Sister | — | Pennsylvania |
| 65 | William E. Hetzel | 70 | Brother | — | Pennsylvania |
| 66 | Lydia A. Richelderfer | 70 | Maid | House Maid | Pennsylvania |
| 67 | James H. Jr. Hurtt | 67 | Head | Dental Specialties | Maryland |
| 68 | Florence H. Hurtt | 66 | Wife | — | Delaware |
| 69 | Polly Hurtt | 35 | Daughter | — | Pennsylvania |
| 70 | James H. Iii Hurtt | 40 | Son | Salesman | Pennsylvania |
| 71 | James H. Iv Hurtt | 10 | Grandson | — | Delaware |
| 72 | Anna Mcfetridge | 85 | Head | — | Pennsylvania |
| 73 | Martha Mcfetridge | 85 | Sister | — | Pennsylvania |
| 74 | John N. Klein | 37 | Head | Tool Handler | Pennsylvania |
| 75 | Lottie M. Klein | 51 | Wife | — | Pennsylvania |
| 76 | Willard Lehman | 37 | Brother-in-law | Tool Handler | Pennsylvania |
| 77 | Ernst Pfatteicher | 33 | Head | Engineer | Pennsylvania |
| 78 | Ester Pfatteicher | 32 | Wife | — | Pennsylvania |
| 79 | Philip Pfatteicher | 4 | Son | — | Pennsylvania |
| 80 | Ann Pfatteicher | 0 | Daughter | — | Pennsylvania |
Pedigree Summary
Frank + 1 sibling
Gen 1 · 2 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)