JW
John Williamson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wayne-County, Michigan
Our Model Tree links this John Williamson across the 1920, 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed) — first a head (b.~1891), then head of a 6-person household.
Age 49
b. ~1891
Male
Head
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | Williamson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Laborer |
| Industry | Automobile Factory |
| Class of Worker | PW |
| Hours Worked | 39 |
| Income (1939) | 500 |
| Highest Grade | H-2 |
| 1935 Residence | Same Place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Occupation | Laborer |
| Township / Ward | Detroit 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Eva Williamson | Daughter | — | 10 | ~1930 |
| John Williamson | Head | — | 49 | ~1891 |
| Thomas Williamson | Son | — | 3 | ~1937 |
| William Williamson | Son | — | 7 | ~1933 |
| John Williamson | Son | — | 14 | ~1926 |
| Kate Williamson | Spouse | — | 44 | ~1896 |
Census Appearances
1920
Wayne, Michigan
Head, age 29
Wayne, Michigan · implied b. ~1891 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williamson |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Scotland |
| Year of Immigration | 1912 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Clerical Work |
| Industry | in Factory |
| Class of Worker | S |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Scotch |
| Home Owned/Rented | R |
| Birth Country | Scotland |
| Year of Naturalization | 1918 |
| Birthplace (normalized) | scotland |
1930
Wayne, Michigan
Head, age 37
Wayne, Michigan · implied b. ~1893 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williamson |
| Given Name | John W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Alien |
| Year of Immigration | 1911 |
| Age at First Marriage | 30 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Northern Ireland |
| Occupation | Blacksmith |
| Industry | Auto Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 2500 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Wayne-County, Michigan
Head, age 49
Wayne-County, Michigan · implied b. ~1891 — 6 household members
| Surname | Williamson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Naturalization Status | Naturalized |
| Occupation | Laborer |
| Industry | Automobile Factory |
| Class of Worker | PW |
| Hours Worked | 39 |
| Income (1939) | 500 |
| Highest Grade | H-2 |
| 1935 Residence | Same Place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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.
Show:
This person
Anchor record
John Williamson
Head · 1940 · age 49 · b. ~1891 · 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 — Wayne-County, Michigan
Open full size
1940 US Federal Census — Wayne-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01889-00793)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Shirley Ann Ross | 5 | Daughter | — | Michigan |
| 2 | Carolyn Ross | 1 | Daughter | — | Michigan |
| 3 | William G. Hodge | 47 | Head | Cutter | England |
| 4 | Elsie Hodge | 39 | Wife | — | Ohio |
| 5 | George James | 37 | Head | Sprayer | Canada-English |
| 6 | Beatrice James | 36 | Wife | — | England |
| 7 | George Jr. James | 14 | Son | — | Michigan |
| 8 | Ray James | 6 | Son | — | Michigan |
| 9 | Orville James | 5 | Son | — | Michigan |
| 10 | Sharon James | 3 | Daughter | — | Michigan |
| 11 | Bertha James | 75 | Mother | — | Newfoundland |
| 12 | Lowell A. Readman | 23 | Head | Checker | Michigan |
| 13 | Frances Readman | 21 | Wife | — | Newfoundland |
| 14 | John Williamson THIS PERSON | 49 | Head | Laborer | Scotland |
| 15 | Kate Williamson | 44 | Wife | — | Canada-English |
| 16 | John Jr. Williamson | 14 | Son | — | Michigan |
| 17 | Eva Williamson | 10 | Daughter | — | Michigan |
| 18 | William Williamson | 7 | Son | — | Michigan |
| 19 | Thomas Williamson | 3 | Son | — | Michigan |
| 20 | George W. Hancock | 31 | Head | Block Repairman | Michigan |
| 21 | Stephanie Hancock | 23 | Wife | — | Michigan |
| 22 | Georgette Hancock | 5 | Daughter | — | Michigan |
| 23 | Philip Hancock | 4 | Son | — | Michigan |
| 24 | George Hancock | 1 | Son | — | Michigan |
| 25 | Charlotte Hancock | 20 | Sister | — | Michigan |
| 26 | Joseph Hancock | 1 | Nephew | — | Michigan |
| 27 | John J. Mcginty | 35 | Head | Hod Carrier | Scotland |
| 28 | Rose Mcginty | 40 | Wife | — | Ireland |
| 29 | Margaret Mcginty | 15 | Daughter | — | Michigan |
| 30 | John Mcart | 22 | Step-Son | Waitress | Michigan |
| 31 | Ben Mcart | 21 | Step-Son | Chauffeur | Michigan |
| 32 | Timothy Mcart | 19 | Step-Son | Lens Grinder | Michigan |
| 33 | Mary Mcart | 17 | Step-Daughter | — | Michigan |
| 34 | Albert E. Millington | 30 | Head | Laborer | Pennsylvania |
| 35 | Lilah Millington | 28 | Wife | — | California |
| 36 | William E. Ainslie | 72 | Head | — | Canada-English |
| 37 | Nora Butcher | 65 | Sister | — | Canada-English |
| 38 | Margaret Hudson | 69 | Head | — | Canada-English |
| 39 | Mayme Campbell | 25 | Daughter | Housekeeper | Illinois |
| 40 | John Campbell | 4 | Grandson | — | 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)