JC
John Crawford — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this John Crawford across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1913), then head of a 4-person household.
Age 27
b. ~1913
Male
Son
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Crawford |
| Given Name | John P. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Tarentum Borough |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Agent |
| Industry | Insurance |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 2500 |
| Highest Grade | C 3 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Agent |
| Township / Ward | Tarentum Borough |
| Est. Birth Year | ~1913 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| John Crawford | Head | — | 76 | ~1864 |
| Doris Crawford | Other | — | 27 | ~1913 |
| John Crawford | Other | — | 5 | ~1935 |
| John Crawford | Son | — | 27 | ~1913 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 6
Allegheny, Pennsylvania · implied b. ~1914 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Crawford |
| Given Name | John P Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 17
Allegheny, Pennsylvania · implied b. ~1913 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Crawford |
| Given Name | John P. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Son, age 27
Allegheny-County, Pennsylvania · implied b. ~1913 — 4 household members
| Surname | Crawford |
| Given Name | John P. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Tarentum Borough |
| 1935 Residence (County) | Allegheny |
| Occupation | Agent |
| Industry | Insurance |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 2500 |
| Highest Grade | C 3 |
| 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 Crawford across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Crawford (~0.92 confidence) and father John Crawford (~0.92 confidence) and father John Crawford (~0.92 confidence) and mother Blanche Crawford (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Crawford
b. ~1864
Source father
● Household
· direct · ~0.92
Father
John Crawford
b. ~1864
Source father
● Household
· direct · ~0.92
Father
John Crawford
b. ~1867
Source father
● Household
· direct · ~0.92
Mother
Blanche Crawford
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Crawford
Son · 1940 · age 27 · b. ~1913 · 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 — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03419-00092)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | James L. Crotty | 46 | Head | Laborer | Pennsylvania |
| 42 | Beulah G. Crotty | 45 | Wife | — | Pennsylvania |
| 43 | Dr. David H. Spahr | 31 | Head | Eye Doctor | Pennsylvania |
| 44 | Margaret E. Spahr | 25 | Wife | — | Tennessee |
| 45 | David H. Spahr | 2 | Son | — | Pennsylvania |
| 46 | James L. Spahr | 0 | Son | — | Pennsylvania |
| 47 | John C. Evans | 61 | Head | Printer | Pennsylvania |
| 48 | Barbara A. Evans | 60 | Wife | — | Pennsylvania |
| 49 | George H. Cogley | 65 | Head | — | Pennsylvania |
| 50 | Martha A. Cogley | 58 | Wife | — | Pennsylvania |
| 51 | R. P. Stark | 63 | Head | Lamp Foreman | Pennsylvania |
| 52 | Ida M. Stark | 64 | Wife | — | Pennsylvania |
| 53 | Charles L. Klingensmith | 60 | Brother-in-law | Janitor | Pennsylvania |
| 54 | Alice Klingensmith | 55 | Sister-in-law | — | Pennsylvania |
| 55 | Margaret Klingensmith | 45 | Niece | — | Pennsylvania |
| 56 | George H. Klingensmith | 34 | Nephew | Agent | Pennsylvania |
| 57 | Otto Sontum | 53 | Head | Inspector | Pennsylvania |
| 58 | Dwight Sontum | 28 | Son | Statistician | Pennsylvania |
| 59 | Bernice Sontum | 25 | Daughter-in-law | — | Pennsylvania |
| 60 | Lee Sontum | 1 | Grandson | — | Pennsylvania |
| 61 | William G. Campbell | 50 | Head | Office Clerk | Pennsylvania |
| 62 | Ora H. Campbell | 48 | Wife | — | Pennsylvania |
| 63 | Adam P. Lowry | 22 | Roomer | Office Clerk | Pennsylvania |
| 64 | Martha Haines | 42 | Housekeeper | — | Pennsylvania |
| 65 | Samuel N. Wiggins | 64 | Head | Time Keeper | Pennsylvania |
| 66 | Lillian Wiggins | 60 | Wife | — | Pennsylvania |
| 67 | A. O. Endsley | 64 | Head | Superintendent | Ohio |
| 68 | Elva L. Endsley | 54 | Wife | — | Pennsylvania |
| 69 | R. S. Endsley | 32 | Son | Associate Manager | Pennsylvania |
| 70 | John P. Sr. Crawford | 76 | Head | Cashier | Pennsylvania |
| 71 | John P. Jr. Crawford THIS PERSON | 27 | Son | Agent | Pennsylvania |
| 72 | Doris M. Crawford | 27 | Daughter-in-law | — | Pennsylvania |
| 73 | John P. Iii Crawford | 5 | Grandson | — | Pennsylvania |
| 74 | Charles J. Hazlett | 50 | Head | Laborer | Pennsylvania |
| 75 | Ethel M. Hazlett | 47 | Wife | — | Pennsylvania |
| 76 | Richard C. Hazlett | 17 | Son | — | Pennsylvania |
| 77 | J. J. Burke | 37 | Roomer | Inspector | Pennsylvania |
| 78 | Wm. D. Sr. Kennedy | 45 | Head | — | Pennsylvania |
| 79 | Elizabeth A. Kennedy | 43 | Daughter | Bookkeeper | Pennsylvania |
| 80 | Leon W. Heid | 44 | Brother-in-law | Brick Helper (Laborer) | Pennsylvania |
Pedigree Summary
John
Gen 1 · 4 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)