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Thomas Foster — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Sanilac-County, Michigan
Our Model Tree links this Thomas Foster across the 1930 and 1940 US Censuses in Sanilac-County, Michigan (XGBoost, ~Confirmed) — first a son (b.~1930), then head of a 13-person household.
Age 10
b. ~1930
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Sanilac-County, Michigan |
| Surname | Foster |
| Given Name | Thomas E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Peck |
| 1935 Residence (County) | Sanilac |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | 4 |
| 1935 Residence | Same house |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Peck |
| Est. Birth Year | ~1930 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Foster | Daughter | — | 8 | ~1932 |
| Barbara Foster | Daughter | — | 17 | ~1923 |
| Grace Foster | Daughter | — | 4 | ~1936 |
| Thomas Foster | Son | — | 10 | ~1930 |
| Marie Foster | Spouse | — | 42 | ~1898 |
| Bart Foster | Son | — | 16 | ~1924 |
| Marilyn Foster | Daughter | — | 11 | ~1929 |
| Betty Foster | Daughter | — | 18 | ~1922 |
| Mary Foster | Daughter | — | 7 | ~1933 |
| Richard Foster | Son | — | 2 | ~1938 |
| Anna Mcnulty | Other | — | 77 | ~1863 |
| Howard Foster | Head | — | 52 | ~1888 |
| James Foster | Son | — | 19 | ~1921 |
Census Appearances
1930
Sanilac, Michigan
Son, age
Sanilac, Michigan · implied b. ~1930 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Foster |
| Given Name | Thomas E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Sanilac-County, Michigan
Son, age 10
Sanilac-County, Michigan · implied b. ~1930 — 13 household members
| Surname | Foster |
| Given Name | Thomas E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Peck |
| 1935 Residence (County) | Sanilac |
| Income (1939) | 0 |
| Highest Grade | 4 |
| 1935 Residence | Same house |
| 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 Thomas Foster across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Thomas Foster
Son · 1940 · age 10 · b. ~1930 · Michigan
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Sibling
Mary Foster
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Foster
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Grace Foster
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Foster
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bart Foster
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Foster
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Foster
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Foster
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marilyn Foster
Sibling · 1940 · age 11
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 — Sanilac-County, Michigan
Open full size
1940 US Federal Census — Sanilac-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01818-00247)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ruth May Woodard | 9 | daughter | — | Michigan |
| 42 | Mildred Elise Woodard | 7 | daughter | — | Michigan |
| 43 | Dorothy Jean Woodard | 4 | daughter | — | Michigan |
| 44 | Patsy Rosella Woodard | 3 | daughter | — | Michigan |
| 45 | Lyman Woodard | 59 | Head | Post Master | Michigan |
| 46 | Lulu Alexander | 42 | Sister | Clerk | Michigan |
| 47 | Jack Alexander | 18 | Nephew | — | Michigan |
| 48 | Ralph Densmore | 56 | Head | Agent | Michigan |
| 49 | Barbara Ann Densmore | 56 | Wife | — | Michigan |
| 50 | William C. Densmore | 19 | Son | — | Michigan |
| 51 | Kenneth W. Liebler | 36 | Head | Laborer | Michigan |
| 52 | Verna Marie Liebler | 28 | Wife | — | Michigan |
| 53 | Mabel Joyce Liebler | 5 | daughter | — | Michigan |
| 54 | William Dexter Liebler | 2 | Son | — | Michigan |
| 55 | Howard T. Foster | 52 | Head | Auditor | Michigan |
| 56 | Marie E. Foster | 42 | Wife | — | Michigan |
| 57 | James H. Foster | 19 | Son | — | Michigan |
| 58 | Betty Jane Foster | 18 | daughter | — | Michigan |
| 59 | Barbara A. Foster | 17 | daughter | — | Michigan |
| 60 | Bart John Foster | 16 | Son | — | Michigan |
| 61 | Marilyn T. Foster | 11 | daughter | — | Michigan |
| 62 | Thomas E. Foster THIS PERSON | 10 | Son | — | Michigan |
| 63 | Dorothy Jean Foster | 8 | daughter | — | Michigan |
| 64 | Mary Catherine Foster | 7 | daughter | — | Michigan |
| 65 | Grace Agatha Foster | 4 | daughter | — | Michigan |
| 66 | Richard J. Foster | 2 | Son | — | Michigan |
| 67 | Anna S. Mcnulty | 77 | Mother-in-law | — | Michigan |
| 68 | Mathus L. Morrison | 53 | Head | Laborer | Michigan |
| 69 | Mildred F. Morrison | 53 | Wife | — | Michigan |
| 70 | William A. Morrison | 23 | Son | Laborer | Michigan |
| 71 | Margaret Jean Morrison | 13 | daughter | — | Michigan |
| 72 | Nettie Irene Whalen | 64 | Head | — | Michigan |
| 73 | Beatrice Marie Whalen | 36 | daughter | — | Michigan |
| 74 | Elizabeth Clark | 86 | Head | — | Canada-English |
| 75 | Fergus A. Park | 39 | Head | Sailor | Michigan |
| 76 | Thelma I. Park | 23 | Wife | — | Michigan |
| 77 | Raymond L. Park | 1 | Son | — | Michigan |
| 78 | Nelson Smith | 63 | Head | Labour | Michigan |
| 79 | Sarah A. Smith | 62 | Wife | — | Canada-English |
| 80 | Norma Barbara Smith | 10 | daughter | — | 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)