MP
Mary Post — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Washington-County, Pennsylvania
Our Model Tree links this Mary Post across the 1930 and 1940 US Censuses in Washington-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 9-person household.
Age 12
b. ~1928
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Pennsylvania |
| Surname | Post |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Amwell Township |
| 1935 Residence (County) | Washington |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same House |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Amwell Township |
| Est. Birth Year | ~1928 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Samuel Post | Son | — | 6 | ~1934 |
| Samuel Post | Other | — | 83 | ~1857 |
| George Post | Other | — | 53 | ~1887 |
| Earl Post | Head | — | 39 | ~1901 |
| Mary Post | Daughter | — | 12 | ~1928 |
| Nellie Post | Daughter | — | 14 | ~1926 |
| Mary Post | Spouse | — | 32 | ~1908 |
| Joann Post | Daughter | — | 9 | ~1931 |
| Martha Post | Daughter | — | 3 | ~1937 |
Census Appearances
1930
Washington, Pennsylvania
Daughter, age 2
Washington, Pennsylvania · implied b. ~1928 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Post |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Washington-County, Pennsylvania
Daughter, age 12
Washington-County, Pennsylvania · implied b. ~1928 — 9 household members
| Surname | Post |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Amwell Township |
| 1935 Residence (County) | Washington |
| Highest Grade | No 6 |
| 1935 Residence | Same House |
| 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 Mary Post across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Post
Daughter · 1940 · age 12 · b. ~1928 · Pennsylvania
★ You are viewing this record
Sibling
Martha Post
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Samuel Post
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nellie Post
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joann Post
Sibling · 1940 · age 9
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 — Washington-County, Pennsylvania
Open full size
1940 US Federal Census — Washington-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03620-00094)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Anna Rush | 76 | Mother | — | Pennsylvania |
| 42 | James C. Coffield | 40 | Head | Grinder | West Virginia |
| 43 | Nellie E. Coffield | 34 | Wife | — | Pennsylvania |
| 44 | Stella M. Coffield | 11 | Daughter | — | Pennsylvania |
| 45 | Shirley A. Coffield | 9 | Daughter | — | Pennsylvania |
| 46 | Wilma R. Coffield | 6 | Daughter | — | Pennsylvania |
| 47 | Donna B. Coffield | 4 | Daughter | — | Pennsylvania |
| 48 | Joy L. Coffield | 2 | Daughter | — | Pennsylvania |
| 49 | Earl D. Post | 39 | Head | Farmer | Pennsylvania |
| 50 | Mary M. Post | 32 | Wife | — | Pennsylvania |
| 51 | Nellie M. Post | 14 | Daughter | — | Pennsylvania |
| 52 | Mary E. Post THIS PERSON | 12 | Daughter | — | Pennsylvania |
| 53 | Joann Post | 9 | Daughter | — | Pennsylvania |
| 54 | Samuel E. Post | 6 | Son | — | Pennsylvania |
| 55 | Martha J. Post | 3 | Daughter | — | Pennsylvania |
| 56 | George M. Post | 53 | Brother | Farmer | Pennsylvania |
| 57 | Samuel B. Post | 83 | Father | — | Pennsylvania |
| 58 | Lorenzo D. Bash | 64 | Head | Engineer | Pennsylvania |
| 59 | Elva M. Bash | 64 | Wife | — | Pennsylvania |
| 60 | Cora Ann Bash | 35 | Daughter | Teacher | Pennsylvania |
| 61 | Esther L. Bash | 33 | Daughter | Sales Promoter | Pennsylvania |
| 62 | Mattison L. Bash | 24 | Son | New Worker | Pennsylvania |
| 63 | Samuel L. Hazlett | 77 | Head | Farmer | Pennsylvania |
| 64 | Margaret C. Hazlett | 63 | Wife | — | Pennsylvania |
| 65 | Walter P. Bedillion | 35 | Head | Farmer | Pennsylvania |
| 66 | Helene V. Bedillion | 31 | Wife | — | Pennsylvania |
| 67 | Helen L. Bedillion | 10 | Daughter | — | Pennsylvania |
| 68 | Dorothy W. Bedillion | 9 | Daughter | — | Pennsylvania |
| 69 | Clara E. Mcmahan | 42 | Head | — | Pennsylvania |
| 70 | Earl A. Mcmahan | 20 | Son | New Worker | Pennsylvania |
| 71 | Stephen B. May | 73 | Head | Farmer | Pennsylvania |
| 72 | Flora S. May | 67 | Wife | — | Pennsylvania |
| 73 | John H. May | 28 | Son | Laborer | Pennsylvania |
| 74 | James H. May | 23 | Son | Laborer | Pennsylvania |
| 75 | Helen May | 20 | Daughter-in-law | — | Pennsylvania |
| 76 | Samuel Clark | 38 | Hired Hand | Laborer | Tennessee |
| 77 | George D. Bruce | 56 | Head | Farmer | Pennsylvania |
| 78 | Emmett D. Bruce | 18 | Son | — | Pennsylvania |
| 79 | Eugene D. Bruce | 15 | Son | — | Pennsylvania |
| 80 | Eugene M. Davis | 52 | Hired Hand | Laborer | Texas |
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)