MH
Mary Harrison — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Delta-County, Michigan
Our Model Tree links this Mary Harrison across the 1920, 1930 and 1940 US Censuses in Delta-County, Michigan (XGBoost, ~Confirmed) — first a spouse (b.~1885), then head of a 7-person household.
Age 55
b. ~1885
Female
Spouse
Born: Sweden
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Delta-County, Michigan |
| Surname | Harrison |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Cornell |
| 1935 Residence (County) | Delta |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | G 4 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
| Township / Ward | Cornell |
| Est. Birth Year | ~1885 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Lorraine Harrison | Daughter | — | 14 | ~1926 |
| Charles Harrison | Head | — | 55 | ~1885 |
| Walter Harrison | Son | — | 24 | ~1916 |
| Mason Harrison | Son | — | 14 | ~1926 |
| Monroe Harrison | Son | — | 15 | ~1925 |
| Henry Harrison | Son | — | 21 | ~1919 |
| Mary Harrison | Spouse | — | 55 | ~1885 |
Census Appearances
1920
Delta, Michigan
Spouse, age 35
Delta, Michigan · implied b. ~1885 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harrison |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Sweden |
| Year of Immigration | 1891 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Year of Naturalization | 1900 |
| Birthplace (normalized) | sweden |
1930
Delta, Michigan
Other, age 46
Delta, Michigan · implied b. ~1884 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harrison |
| Given Name | Mary |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Sweden |
| Naturalization Status | Naturalized |
| Year of Immigration | 1890 |
| Age at First Marriage | 21 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
Delta-County, Michigan
Spouse, age 55
Delta-County, Michigan · implied b. ~1885 — 7 household members
| Surname | Harrison |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Cornell |
| 1935 Residence (County) | Delta |
| Naturalization Status | Naturalized |
| Highest Grade | G 4 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
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 Mary Harrison across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Harrison
Spouse · 1940 · age 55 · b. ~1885 · 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 — Delta-County, Michigan
Open full size
1940 US Federal Census — Delta-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01745-00118)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Leona Carlson | 13 | Sister | — | Michigan |
| 2 | Ruth Carlson | 14 | Sister | — | Michigan |
| 3 | Lloyd Carlson | 11 | Brother | — | Michigan |
| 4 | Barton Carlson | 8 | Brother | — | Michigan |
| 5 | Edward Blink | 29 | Head | Laborer | Michigan |
| 6 | Helen Blink | 23 | Wife | — | Wisconsin |
| 7 | Richard Blink | 3 | Son | — | Michigan |
| 8 | Wayne Blink | 3 | Son | — | Michigan |
| 9 | Beverly Blink | 1 | Daughter | — | Michigan |
| 10 | Alfred Anderson | 67 | Head | — | Sweden |
| 11 | Lena Anderson | 60 | Wife | — | Finland |
| 12 | John Anderson | 20 | Son | Farming | Michigan |
| 13 | Eugene Miron | 37 | Head | Laborer | Michigan |
| 14 | Celeste Miron | 30 | Wife | — | Michigan |
| 15 | Earl Miron | 11 | Son | — | Michigan |
| 16 | Floyd Miron | 10 | Son | — | Michigan |
| 17 | Anthony Miron | 8 | Son | — | Michigan |
| 18 | Everal Miron | 7 | Daughter | — | Michigan |
| 19 | Harold Miron | 5 | Son | — | Michigan |
| 20 | Geraldine Miron | 3 | Daughter | — | Michigan |
| 21 | Omer Guindon | 46 | Head | Laborer | Canada |
| 22 | Eva Guindon | 40 | Wife | — | Michigan |
| 23 | Victor Guindon | 17 | Son | Laborer | Michigan |
| 24 | Rolande Guindon | 15 | Daughter | — | Michigan |
| 25 | Rita Guindon | 11 | Daughter | — | Michigan |
| 26 | Agnes Guindon | 9 | Daughter | — | Michigan |
| 27 | Renard Guindon | 7 | Son | — | Michigan |
| 28 | Hersal Guindon | 7 | Son | — | Michigan |
| 29 | Bertha Guindon | 2 | Daughter | — | Michigan |
| 30 | Evelyn Guindon | 1 | Daughter | — | Michigan |
| 31 | Helen Guindon | 1 | Daughter | — | Michigan |
| 32 | Charles Harrison | 55 | Head | Laborer | Wisconsin |
| 33 | Mary Harrison THIS PERSON | 55 | Wife | — | Sweden |
| 34 | Walter Harrison | 24 | Son | Truck Driver | Michigan |
| 35 | Henry Harrison | 21 | Son | Laborer | Michigan |
| 36 | Mason Harrison | 14 | Son | — | Michigan |
| 37 | Monroe Harrison | 15 | Son | — | Michigan |
| 38 | Lorraine Harrison | 14 | Daughter | — | Michigan |
| 39 | Hjalmar Olson | 32 | Head | Laborer | Sweden |
| 40 | Bernette Olson | 31 | Wife | — | Minnesota |
Related Census Records
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)