MP
Mary Post — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Union-County, New Jersey
Our Model Tree links this Mary Post across the 1930 and 1940 US Censuses in Union-County, New Jersey (XGBoost, ~Confirmed) — first a spouse (b.~1891), then head of a 5-person household.
Age 49
b. ~1891
Female
Spouse
Born: New Jersey
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Union-County, New Jersey |
| Surname | Post |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | Rahway City |
| 1935 Residence (County) | Union |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same House |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Rahway City |
| Est. Birth Year | ~1891 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| John Post | Head | — | 52 | ~1888 |
| Mary Post | Spouse | — | 49 | ~1891 |
| James Post | Son | — | 20 | ~1920 |
| Claire Post | Daughter | — | 14 | ~1926 |
| Mary Post | Daughter | — | 11 | ~1929 |
Census Appearances
1930
Union, New …
Other, age 35
Union, New Jersey · implied b. ~1895 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Post |
| Given Name | Mary |
| Relationship to Head | wife-H |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Age at First Marriage | 24 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Scotland |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Union-County, New …
Spouse, age 49
Union-County, New Jersey · implied b. ~1891 — 5 household members
| Surname | Post |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | Rahway City |
| 1935 Residence (County) | Union |
| Highest Grade | No 6 |
| 1935 Residence | Same House |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 Mary Post across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Post
Spouse · 1940 · age 49 · b. ~1891 · New Jersey
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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 — Union-County, New Jersey
Open full size
1940 US Federal Census — Union-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02388-00245)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Elizabeth Hogrefe | 15 | Daughter | — | New Jersey |
| 2 | John H Post | 52 | Head | Toolmaker | New Jersey |
| 3 | Mary Post THIS PERSON | 49 | Wife | — | New Jersey |
| 4 | James Post | 20 | Son | New Worker | New Jersey |
| 5 | Claire Post | 14 | Daughter | — | New Jersey |
| 6 | Mary E Post | 11 | Daughter | — | New Jersey |
| 7 | Rudolph Giess | 45 | Head | Auto Inspector | Hungary |
| 8 | Rose Giess | 37 | Wife | — | Hungary |
| 9 | Gisella Giess | 16 | Daughter | — | New Jersey |
| 10 | Rudolph Giess | 14 | Son | — | New Jersey |
| 11 | Joseph Giess | 11 | Son | — | New Jersey |
| 12 | Gizella Giess | 67 | Mother | — | Hungary |
| 13 | Elmer Hawkins | 37 | Son-in-law | Electric Plater | New Jersey |
| 14 | Anna Hawkins | 21 | Daughter | — | Hungary |
| 15 | John H. Sotak | 52 | Head | Mach-Engr. Elect. Mach. | Hungary |
| 16 | Gizella Sotak | 43 | Wife | — | Hungary |
| 17 | Robert M Andrew | 60 | Head | Pass. Repr. | Ohio |
| 18 | Flora Andrew | 50 | Wife | — | West Virginia |
| 19 | Robert Andrew | 27 | Son | Playwright | New York |
| 20 | James Andrew | 23 | Son | — | New York |
| 21 | Sidney Schultz | 59 | Head | Packer | New Jersey |
| 22 | Edna M. Schultz | 56 | Wife | — | New Jersey |
| 23 | Helen Schultz | 32 | Daughter | — | New Jersey |
| 24 | Darwin Husted | 45 | Roomer | Clerk | Penn. |
| 25 | Andrew Semple | 44 | Head | Linotype Oper. | New Jersey |
| 26 | Hazel K. Semple | 44 | Wife | — | Penn. |
| 27 | Margaret G Semple | 22 | Daughter | Secretary | New Jersey |
| 28 | Theora L Semple | 20 | Daughter | — | New Jersey |
| 29 | James T Holt | 41 | Head | Master Mech. | Maryland |
| 30 | Marjorie Holt | 34 | Wife | — | Penn. |
| 31 | James T Jr Holt | 10 | Son | — | New Jersey |
| 32 | John Holt | 8 | Son | — | New Jersey |
| 33 | Nancy Holt | 5 | Son | — | New Jersey |
| 34 | Martin Weth | 57 | Head | Av. City Treas. | New Jersey |
| 35 | Ethel Weth | 51 | Wife | — | New York |
| 36 | Arthur Weth | 21 | Son | Postman | New Jersey |
| 37 | Gladys Weth | 19 | Daughter | — | New Jersey |
| 38 | Frances Weth | 14 | Daughter | — | New Jersey |
| 39 | William H. Tandy | 56 | Head | Retired | New York |
| 40 | Florence D. Tandy | 56 | Wife | — | New Jersey |
Related Census Records
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)