WP
William Post — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Midland-County, Michigan
Our Model Tree links this William Post across the 1930 and 1940 US Censuses in Midland-County, Michigan (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 7-person household.
Age 11
b. ~1929
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Midland-County, Michigan |
| Surname | Post |
| Given Name | William |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Midland City |
| 1935 Residence (County) | Midland |
| Additional Details | |
| Highest Grade | S 5 |
| 1935 Residence | Mich |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Midland City |
| Est. Birth Year | ~1929 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| John Post | Son | — | 13 | ~1927 |
| John Post | Head | — | 37 | ~1903 |
| Helen Post | Daughter | — | 4 | ~1936 |
| Agnes Post | Spouse | — | 36 | ~1904 |
| Lois Post | Daughter | — | 15 | ~1925 |
| Katharine Post | Daughter | — | 16 | ~1924 |
| William Post | Son | — | 11 | ~1929 |
Census Appearances
1930
Midland, Michigan
Son, age 1
Midland, Michigan · implied b. ~1929 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Post |
| Given Name | William |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Occupation | none |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Midland-County, Michigan
Son, age 11
Midland-County, Michigan · implied b. ~1929 — 7 household members
| Surname | Post |
| Given Name | William |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Midland City |
| 1935 Residence (County) | Midland |
| Highest Grade | S 5 |
| 1935 Residence | Mich |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 William Post across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Post
Son · 1940 · age 11 · b. ~1929 · Michigan
★ You are viewing this record
Sibling
Katharine Post
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Post
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lois Post
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Post
Sibling · 1940 · age 4
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 — Midland-County, Michigan
Open full size
1940 US Federal Census — Midland-County, Michigan
Page Contents
37 people indexed on this census page (nara:1940:m-t0627-01790-00580)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Billie Hull | 8 | son | — | Michigan |
| 2 | Edward Hull | 5 | son | — | Michigan |
| 3 | Beverly Hull | 3 | daughter | — | Michigan |
| 4 | Lawrence Hull | 0 | son | — | Michigan |
| 5 | Ivan E Weiser | 46 | head | Sp. Police | Ohio |
| 6 | Ethel Ola Weiser | 38 | wife | — | Michigan |
| 7 | Lola Weiser | 18 | daughter | — | Michigan |
| 8 | Ivan Weiser | 12 | son | — | Michigan |
| 9 | Bonneita Weiser | 10 | daughter | — | Michigan |
| 10 | John Whitmer | 38 | head | Operator | Ohio |
| 11 | Flossie Whitmer | 35 | wife | — | Ohio |
| 12 | Robert Whitmer | 10 | son | — | Michigan |
| 13 | Olan Whitmer | 8 | son | — | Michigan |
| 14 | Lillian Whitmer | 5 | daughter | — | Michigan |
| 15 | Barbara Whitmer | 0 | daughter | — | Michigan |
| 16 | Cyrus Rooker | 78 | head | — | Michigan |
| 17 | Emma Rooker | 70 | wife | — | Michigan |
| 18 | Thelma Rooker | 32 | daughter | Asst Librarian | Michigan |
| 19 | John Post | 37 | head | Operator | Michigan |
| 20 | Agnes Post | 36 | wife | — | Michigan |
| 21 | Katharine Post | 16 | daughter | — | Michigan |
| 22 | Lois Post | 15 | daughter | — | Michigan |
| 23 | John Post | 13 | son | — | Michigan |
| 24 | William Post THIS PERSON | 11 | son | — | Michigan |
| 25 | Helen Jane Post | 4 | daughter | — | Michigan |
| 26 | Frank Walker | 43 | head | Mechanic | Michigan |
| 27 | Mabel Walker | 41 | wife | — | Ohio |
| 28 | Esther R Walker | 21 | daughter | — | Ohio |
| 29 | Harold J. Walker | 20 | son | — | Illinois |
| 30 | Mary E. Walker | 16 | daughter | — | Michigan |
| 31 | Robert R Walker | 10 | son | — | Michigan |
| 32 | Dorothy E Walker | 3 | daughter | — | Michigan |
| 33 | Arthur Stevens | 25 | head | Wheelman | Michigan |
| 34 | Jessie Stevens | 19 | wife | — | Michigan |
| 35 | Arthur Jr Stevens | 2 | son | — | Michigan |
| 36 | Judith A Stevens | 0 | daughter | — | Michigan |
| 37 | Paul Stevens | 1 | son | — | Michigan |
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)