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John Armstrong — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Clair-County, Michigan
Our Model Tree links this John Armstrong across the 1910, 1920, 1930 and 1940 US Censuses in St.-Clair-County, Michigan (XGBoost, ~Confirmed) — first a head (b.~1867), then head of a 4-person household.
Age 73
b. ~1867
Male
Head
Born: Michigan
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Clair-County, Michigan |
| Surname | Armstrong |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 73 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Burchville |
| 1935 Residence (County) | St Clair |
| Additional Details | |
| Industry | Farmer |
| Class of Worker | Farming |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Burchville |
| Est. Birth Year | ~1867 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Armstrong | Head | — | 73 | ~1867 |
| Desmond Armstrong | Son | — | 42 | ~1898 |
| John Armstrong | Son | — | 48 | ~1892 |
| Charles Armstrong | Spouse | — | 69 | ~1871 |
Census Appearances
1910
St Clair, …
Head, age 43
St Clair, Michigan · implied b. ~1867 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Armstrong |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Michigan |
| Years Married | 22 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Farmer |
| Industry | Gen Farm |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1920
St Clair, …
Head, age 52
St Clair, Michigan · implied b. ~1868 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Armstrong |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Michigan |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
St Clair, …
Head, age 63
St Clair, Michigan · implied b. ~1867 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Armstrong |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Michigan |
| Age at First Marriage | 22 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
St.-Clair-County, Michigan
Head, age 73
St.-Clair-County, Michigan · implied b. ~1867 — 4 household members
| Surname | Armstrong |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 73 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Burchville |
| 1935 Residence (County) | St Clair |
| Industry | Farmer |
| Class of Worker | Farming |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| 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 John Armstrong across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Armstrong
Head · 1940 · age 73 · b. ~1867 · 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-t0627-01815-00049)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Manard Morgan | 10 | Son | — | Michigan |
| 42 | David Rose | 64 | Head | Laborer | Michigan |
| 43 | Phoebe Rose | 66 | Wife | — | Canada |
| 44 | Amos Kingsland | 53 | Head | M.P.A. | Michigan |
| 45 | Anna Kingsland | 48 | Wife | — | Michigan |
| 46 | Frederick Kingsland | 18 | Son | Farmer | Michigan |
| 47 | Harold Kingsland | 15 | Son | — | Michigan |
| 48 | Robert Armstrong | 65 | Head | Woolen Mill | Michigan |
| 49 | Lucille Armstrong | 61 | Wife | — | Michigan |
| 50 | Roxie Armstrong | 33 | daughter | — | Michigan |
| 51 | Robert Armstrong | 29 | Son | Farmer | Michigan |
| 52 | Clayton Armstrong | 26 | Son | Mill Worker | Michigan |
| 53 | John Armstrong THIS PERSON | 73 | Head | — | Michigan |
| 54 | Charles Armstrong | 69 | Wife | — | Michigan |
| 55 | John Jr. Armstrong | 48 | Son | Auto | Michigan |
| 56 | Desmond Armstrong | 42 | Son | Auto | Michigan |
| 57 | Hiram Freeman | 52 | Head | Farmer | Michigan |
| 58 | Clara Freeman | 46 | Wife | — | Michigan |
| 59 | Earl Freeman | 49 | Head | Farmer | Michigan |
| 60 | Loyd Freeman | 16 | H help | Farmer | Michigan |
| 61 | Clair Thomson | 36 | Head | Weaver | Michigan |
| 62 | Mina Thomson | 33 | Wife | Spinner | Michigan |
| 63 | Don Thomson | 14 | Son | — | Michigan |
| 64 | Pearl Thomson | 10 | Son | — | Michigan |
| 65 | Howard Thomson | 8 | Son | — | Michigan |
| 66 | Albert Coleman | 38 | Head | Teamman | Canada |
| 67 | Ruby Coleman | 40 | Wife | — | Kentucky |
| 68 | John Coleman | 10 | Son | — | Michigan |
| 69 | Cozette Coleman | 7 | daughter | — | Michigan |
| 70 | Hira Linsbury | 48 | Head | Loom Fixer | Michigan |
| 71 | Dora Linsbury | 34 | Wife | Weaver | Michigan |
| 72 | Mary A Linsbury | 12 | Daughter | — | Michigan |
| 73 | Blanche Linsbury | 2 | Daughter | — | Michigan |
| 74 | Joseph Lineat | 52 | Head | Farmer | Lithuania |
| 75 | Hannah Lineat | 44 | Wife | Farmer | Lithuania |
| 76 | Joseph Lineat | 22 | Son | Farmer | Illinois |
| 77 | Ralph Bullock | 41 | Head | Farmer | Michigan |
| 78 | Lila Bullock | 34 | Wife | Farmer | Michigan |
| 79 | Dorothy Bullock | 14 | daughter | — | Michigan |
| 80 | Carl Bullock | 12 | 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)