MP
Mary Pearson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Delta-County, Michigan
Our Model Tree links this Mary Pearson across the 1930 and 1940 US Censuses in Delta-County, Michigan (XGBoost, ~Confirmed) — first a spouse (b.~1894), then head of a 9-person household.
Age 46
b. ~1894
Female
Spouse
Born: Finland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Delta-County, Michigan |
| Surname | Pearson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Finland |
| 1935 Residence (City) | Wells |
| 1935 Residence (County) | Delta |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
| Township / Ward | Wells |
| Est. Birth Year | ~1894 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Grant Pearson | Daughter | — | 6 | ~1934 |
| Norma Pearson | Daughter | — | 20 | ~1920 |
| Marlene Pearson | Daughter | — | 5 | ~1935 |
| June Pearson | Daughter | — | 16 | ~1924 |
| Marilyn Pearson | Daughter | — | 5 | ~1935 |
| Joyce Pearson | Daughter | — | 14 | ~1926 |
| John Pearson | Head | — | 50 | ~1890 |
| Walter Pearson | Son | — | 23 | ~1917 |
| Mary Pearson | Spouse | — | 46 | ~1894 |
Census Appearances
1930
Delta, Michigan
Other, age 36
Delta, Michigan · implied b. ~1894 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Pearson |
| Given Name | Mary A |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Finland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1900 |
| Age at First Marriage | 17 |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | Finnish |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
1940
Delta-County, Michigan
Spouse, age 46
Delta-County, Michigan · implied b. ~1894 — 9 household members
| Surname | Pearson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Finland |
| 1935 Residence (City) | Wells |
| 1935 Residence (County) | Delta |
| Naturalization Status | Naturalized |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
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 Pearson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Pearson
Spouse · 1940 · age 46 · b. ~1894 · 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-t0627-01745-00908)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Pearson | 50 | Head | Laborer | Sweden |
| 2 | Mary Pearson THIS PERSON | 46 | Wife | — | Finland |
| 3 | Walter Pearson | 23 | Son | Clerk | Michigan |
| 4 | Norma Pearson | 20 | Daughter | Att | Michigan |
| 5 | June Pearson | 16 | Daughter | — | Michigan |
| 6 | Joyce Pearson | 14 | Daughter | — | Michigan |
| 7 | Grant Pearson | 6 | Daughter | — | Michigan |
| 8 | Marilyn Pearson | 5 | Daughter | — | Michigan |
| 9 | Marlene Pearson | 5 | Daughter | — | Michigan |
| 10 | Richard Cometich | 21 | Head | Laborer | Michigan |
| 11 | Lucille Cometich | 20 | Wife | — | France |
| 12 | Lois Cometich | 1 | Daughter | — | Michigan |
| 13 | Louis Roberts | 50 | Head | Laborer | Michigan |
| 14 | Verna Roberts | 45 | Wife | — | Germany |
| 15 | Isabel Roberts | 20 | Daughter | Housekeeper | Michigan |
| 16 | Geraldine Roberts | 9 | Daughter | — | Michigan |
| 17 | William Roberts | 25 | Head | Laborer | Michigan |
| 18 | Lorraine Roberts | 20 | Wife | — | Michigan |
| 19 | Richard Wood | 51 | Head | Mill Wright | Michigan |
| 20 | Hilda Jurgerson | 54 | Housekeeper | Housekeeper | Sweden |
| 21 | Carl Jones | 29 | Head | Laborer | Michigan |
| 22 | Augusta Jones | 17 | Wife | — | Michigan |
| 23 | I. Delbert Leonard | 24 | Head | Laborer | Michigan |
| 24 | Lucille Leonard | 21 | Wife | — | Michigan |
| 25 | Andrew Schmutz | 49 | Head | Laborer | Wisconsin |
| 26 | Gertrude Schmutz | 43 | Wife | — | Michigan |
| 27 | Dorothy Schmutz | 17 | Daughter | New Worker | Michigan |
| 28 | Isabel Schmutz | 15 | Daughter | — | Michigan |
| 29 | Betty Schmutz | 14 | Daughter | — | Michigan |
| 30 | Theodore Schmutz | 9 | Son | — | Michigan |
| 31 | Ava Schmutz | 7 | Daughter | — | Michigan |
| 32 | Charles Schmutz | 6 | Son | — | Michigan |
| 33 | Clarence Schmutz | 27 | Son | Laborer | Michigan |
| 34 | Olive Schmutz | 19 | Daughter-in-law | — | Michigan |
| 35 | Ole Thingulum | 61 | Head | — | Norway |
| 36 | Emily Thingulum | 55 | Wife | — | Norway |
| 37 | Arvid Thingulum | 31 | Son | Laborer | Norway |
| 38 | Edmund Thingulum | 27 | Son | Laborer | Norway |
| 39 | Harold Thingulum | 22 | Son | Laborer | Iowa |
| 40 | Walter Thingulum | 17 | 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)