JW
John Williamson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Clair-County, Michigan
Our Model Tree links this John Williamson across the 1920, 1930 and 1940 US Censuses in St.-Clair-County, Michigan (XGBoost, ~Confirmed) — first a head (b.~1870), then head of a 6-person household.
Age 70
b. ~1870
Male
Head
Born: Norway
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Clair-County, Michigan |
| Surname | Williamson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 70 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | Clay Township |
| 1935 Residence (County) | St Clair |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 20 |
| Income (1939) | 450 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
| Occupation | Farmer |
| Township / Ward | Clay Township |
| Est. Birth Year | ~1870 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Rose Highstreet | Daughter | — | 37 | ~1903 |
| John Williamson | Head | — | 70 | ~1870 |
| Betty Highstreet | Other | — | 12 | ~1928 |
| Andrew Highstreet | Other | — | 45 | ~1895 |
| Dorothy Highstreet | Other | — | 16 | ~1924 |
| Nellie Williamson | Spouse | — | 65 | ~1875 |
Census Appearances
1920
St Clair, …
Head, age 50
St Clair, Michigan · implied b. ~1870 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williamson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Norway |
| Year of Immigration | 1887 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Fireman |
| Industry | Salt Block |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Home Owned/Rented | R |
| Birth Country | Norway |
| Year of Naturalization | 1905 |
| Birthplace (normalized) | norway |
1930
St Clair, …
Head, age 60
St Clair, Michigan · implied b. ~1870 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williamson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Norway |
| Naturalization Status | Naturalized |
| Year of Immigration | 1888 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Can Read/Write | Yes |
| Mother Tongue | Norwegian |
| Home Owned/Rented | O |
| Home Value / Rent | 3500 |
| Radio Set | R |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
1940
St.-Clair-County, Michigan
Head, age 70
St.-Clair-County, Michigan · implied b. ~1870 — 6 household members
| Surname | Williamson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 70 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | Clay Township |
| 1935 Residence (County) | St Clair |
| Naturalization Status | Naturalized |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 20 |
| Income (1939) | 450 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
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 Williamson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Williamson
Head · 1940 · age 70 · b. ~1870 · Michigan
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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 — St.-Clair-County, Michigan
Open full size
1940 US Federal Census — St.-Clair-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01815-00237)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Arthur C. Duvernay | 12 | Son | — | Michigan |
| 42 | Rosalind Lou Duvernay | 2 | Daughter | — | Michigan |
| 43 | Arthur M. Ireland | 78 | Head | Farmer | Switzerland |
| 44 | Verna A. Ireland | 77 | Wife | — | Switzerland |
| 45 | Frank Benoit | 70 | Head | Farmer | Canada English |
| 46 | Catherine Benoit | 72 | Wife | — | Illinois |
| 47 | George Vermullen | 46 | Head | Laborer | Michigan |
| 48 | Flossie Vermullen | 46 | Wife | — | Michigan |
| 49 | Donald Vermullen | 21 | Son | — | Michigan |
| 50 | Clarence Vermullen | 17 | Son | — | Michigan |
| 51 | Willie Vermullen | 16 | Son | — | Michigan |
| 52 | Evelyn Vermullen | 14 | Daughter | — | Michigan |
| 53 | Violet Vermullen | 12 | Daughter | — | Michigan |
| 54 | George Soullier | 49 | Head | Laborer | Michigan |
| 55 | Evelyn Soullier | 51 | Wife | — | Michigan |
| 56 | Herbert Soullier | 19 | Son | Laborer | Michigan |
| 57 | Grant Kelley | 32 | Head | Teacher | Michigan |
| 58 | Bernice Kelley | 33 | Wife | — | Michigan |
| 59 | James Kelley | 4 | Son | — | Michigan |
| 60 | John Williamson THIS PERSON | 70 | Head | Farmer | Norway |
| 61 | Nellie Williamson | 65 | Wife | — | Michigan |
| 62 | Andrew Highstreet | 45 | Son-in-law | Carpenter | Michigan |
| 63 | Rose Highstreet | 37 | Daughter | — | Michigan |
| 64 | Dorothy R. Highstreet | 16 | Granddaughter | — | Michigan |
| 65 | Betty Ann Highstreet | 12 | Granddaughter | — | Michigan |
| 66 | Bruce Montney | 56 | Head | Contractor | Michigan |
| 67 | Irene Montney | 35 | Wife | — | Michigan |
| 68 | William Montney | 12 | Son | — | Michigan |
| 69 | Mary Ellen Montney | 5 | Daughter | — | Michigan |
| 70 | Richard Chapman | 53 | Head | Machinist | England |
| 71 | Carrie Chapman | 49 | Wife | Teacher | Michigan |
| 72 | Merle C. Montney | 35 | Head | Laborer | Michigan |
| 73 | Etha Montney | 27 | Wife | — | Michigan |
| 74 | Joan Montney | 10 | Daughter | — | Michigan |
| 75 | Harold Martin | 32 | Head | Sailor | Michigan |
| 76 | Dorothy Martin | 31 | Wife | — | Michigan |
| 77 | William Martin | 11 | Son | — | Michigan |
| 78 | Eileen May Martin | 9 | Daughter | — | Michigan |
| 79 | James Arthur Martin | 6 | Son | — | Michigan |
| 80 | Dorothy S. Martin | 2 | 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)