JP
John Post — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this John Post across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1888), then head of a 4-person household.
Age 52
b. ~1888
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Post |
| Given Name | John K. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | W. Wilkinsburg |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | W Wilkinsburg |
| Est. Birth Year | ~1888 |
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 |
|---|---|---|---|---|
| Catherine Post | Daughter | — | 26 | ~1914 |
| Catherine Post | Spouse | — | 54 | ~1886 |
| John Post | Head | — | 52 | ~1888 |
| Mary Post | Daughter | — | 23 | ~1917 |
Census Appearances
1920
Allegheny, Pennsylvania
Head, age 31
Allegheny, Pennsylvania · implied b. ~1889 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Post |
| Given Name | John B. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | foreman |
| Industry | steel mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Head, age 41
Allegheny, Pennsylvania · implied b. ~1889 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Post |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 19 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Laborer |
| Industry | Steel Car Wheel Mfg |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 21 |
| Radio Set | R |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Head, age 52
Allegheny-County, Pennsylvania · implied b. ~1888 — 4 household members
| Surname | Post |
| Given Name | John K. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | W. Wilkinsburg |
| 1935 Residence (County) | Allegheny |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 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 Post across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Post
Head · 1940 · age 52 · b. ~1888 · Pennsylvania
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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 — 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-t0627-03421-00295)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Lockhart | 60 | Head | Laborer | Pennsylvania |
| 2 | Gertrude Lockhart | 61 | Wife | — | Pennsylvania |
| 3 | Emma Lockhart | 35 | Daughter | — | Pennsylvania |
| 4 | William Collins | 34 | Head | Driver | England |
| 5 | Virginia Collins | 33 | Wife | — | Pennsylvania |
| 6 | Robert L. Collins | 13 | Son | — | Pennsylvania |
| 7 | Dorothy Jane Collins | 8 | Daughter | — | Pennsylvania |
| 8 | John K. Post THIS PERSON | 52 | Head | — | Pennsylvania |
| 9 | Catherine Post | 54 | Wife | — | Ireland |
| 10 | Catherine A. Post | 26 | Daughter | — | Pennsylvania |
| 11 | Mary M. Post | 23 | Daughter | Stenographer | Pennsylvania |
| 12 | Howard Greenaway | 34 | Head | Laborer | Pennsylvania |
| 13 | Grace Greenaway | 30 | Wife | — | Pennsylvania |
| 14 | Erna B. Greenaway | 11 | Daughter | — | Pennsylvania |
| 15 | Betty Lou Greenaway | 10 | Daughter | — | Pennsylvania |
| 16 | Shirley Ann Greenaway | 8 | Daughter | — | Pennsylvania |
| 17 | Howard Jr. Greenaway | 3 | Son | — | Pennsylvania |
| 18 | Frank Osborne | 32 | Head | Salesman | Pennsylvania |
| 19 | Dorothy Osborne | 27 | Wife | — | Pennsylvania |
| 20 | Cynthia Osborne | 2 | Daughter | — | Pennsylvania |
| 21 | Maurice D. Griffith | 33 | Head | Store Room Attendant | Pennsylvania |
| 22 | Ruth Griffith | 33 | Wife | — | Pennsylvania |
| 23 | Shirley M. Griffith | 12 | Daughter | — | Pennsylvania |
| 24 | Nancy J. Griffith | 6 | Daughter | — | Pennsylvania |
| 25 | Samuel J. Kosh | 43 | Head | Butcher | Pennsylvania |
| 26 | Eleanor Kosh | 44 | Wife | — | Pennsylvania |
| 27 | Guy S. Kosh | 18 | Son | New Worker | Pennsylvania |
| 28 | Paul Kosh | 11 | Son | — | Pennsylvania |
| 29 | Jack R. Sear | 42 | Head | Driver | Pennsylvania |
| 30 | Elva Sear | 41 | Wife | — | Pennsylvania |
| 31 | Jack Sear | 12 | Son | — | Pennsylvania |
| 32 | Harold Frick | 31 | Head | Carpenter | Ohio |
| 33 | Sophia Frick | 33 | Wife | — | Kentucky |
| 34 | Raymond Frick | 14 | Son | — | Pennsylvania |
| 35 | Dorothy Frick | 12 | Daughter | — | Pennsylvania |
| 36 | William Frick | 10 | Son | — | Pennsylvania |
| 37 | Bernard Frick | 6 | Son | — | Pennsylvania |
| 38 | William H. Collins | 56 | Head | Salesman | England |
| 39 | Mary Collins | 56 | Wife | — | England |
| 40 | Robert K. Collins | 30 | Son | Clerical Work | Pennsylvania |
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)