MN
Mary Nelson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Pierce-County, Washington
Our Model Tree links this Mary Nelson across the 1920, 1930 and 1940 US Censuses in Pierce-County, Washington (XGBoost, ~Confirmed) — first a head (b.~1882), then head of a 4-person household.
Age 58
b. ~1882
Female
Head
Born: Finland
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Pierce-County, Washington |
| Surname | Nelson |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Widowed |
| Birthplace | Finland |
| 1935 Residence (City) | Milton |
| 1935 Residence (County) | Pierce |
| Naturalization Status | Naturalized |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
| Township / Ward | Milton |
| Est. Birth Year | ~1882 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Nelson | Head | — | 58 | ~1882 |
| Sidney Nelson | Son | — | 24 | ~1916 |
| Clarence Nelson | Son | — | 30 | ~1910 |
| Ralph Nelson | Son | — | 21 | ~1919 |
Census Appearances
1920
None, None
Spouse, age 37
None, None · implied b. ~1883 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Finland |
| Year of Immigration | 1894 |
| Naturalization Status | Alien |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
1930
Pierce, Washington
Spouse, age 48
Pierce, Washington · implied b. ~1882 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Finland |
| Year of Immigration | 1893 |
| Age at First Marriage | 18 |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
1940
Pierce-County, Washington
Head, age 58
Pierce-County, Washington · implied b. ~1882 — 4 household members
| Surname | Nelson |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Widowed |
| Birthplace | Finland |
| 1935 Residence (City) | Milton |
| 1935 Residence (County) | Pierce |
| Naturalization Status | Naturalized |
| Class of Worker | 0 |
| Highest Grade | 6 |
| 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 Nelson across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Nelson
Head · 1940 · age 58 · b. ~1882 · Washington
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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 — Pierce-County, Washington
Open full size
1940 US Federal Census — Pierce-County, Washington
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04356-00085)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lawrence Terry | 39 | Head | Laborer | Michigan |
| 2 | Alice Terry | 34 | Wife | — | Ark. |
| 3 | Colleen Terry | 14 | Daughter | — | Wash |
| 4 | James Terry | 11 | Son | — | Wash |
| 5 | Joyce Terry | 8 | Daughter | — | Wash |
| 6 | Adolf Appel | 57 | Head | Laborer | Germany |
| 7 | Oscar Johnson | 30 | Head | Teacher | Wash |
| 8 | Lorella Johnson | 25 | Wife | Teacher | Wash |
| 9 | Mary Nelson THIS PERSON | 58 | Head | — | Finland |
| 10 | Clarence Nelson | 30 | Son | Laborer | Utah |
| 11 | Sidney Nelson | 24 | Son | New Work | Wash |
| 12 | Ralph Nelson | 21 | Son | Laborer | Wash |
| 13 | Joe Marty | 25 | Head | Milker | Swit. |
| 14 | Mary Marty | 25 | Wife | — | Swit. |
| 15 | Don E. Hammond | 38 | Head | Laborer | Wash |
| 16 | Mary E. Hammond | 38 | Wife | — | Wash |
| 17 | Don A. Hammond | 15 | Son | — | Wash |
| 18 | James L. Hammond | 8 | Son | — | Wash |
| 19 | Ollie L. Main | 72 | Head | — | Tenn. |
| 20 | Richard Reek | 50 | Head | Grader | Germany |
| 21 | Berget Reek | 39 | Wife | — | Norway |
| 22 | June Reek | 18 | Daughter | — | Wash |
| 23 | Ralph Ose | 26 | Brother-in-law | Laborer | Wash |
| 24 | Henry O. Nutzhon | 32 | Head | Laborer | Germany |
| 25 | Naoma Nutzhon | 47 | Wife | — | Wisc. |
| 26 | John Nutzhon | 27 | Son | Driver | Wisc. |
| 27 | Kenneth Nutzhon | 24 | Son | Driver Warehouse | Wisc. |
| 28 | Leroy Nutzhon | 24 | Son | Laborer | Canada |
| 29 | Eleanor Nutzhon | 12 | Daughter | — | Canada |
| 30 | Emanuel Nutzhon | 10 | Daughter | — | Canada |
| 31 | Ruth Clark | 26 | Head | Elev. Op. | Canada |
| 32 | Joan Robert Clark | 9 | Son | — | Wash |
| 33 | Joan Clark | 4 | Daughter | — | Wash |
| 34 | Ann Mcdonald | 75 | Mother-in-law | — | Wisc. |
| 35 | L. Clara Hollman | 42 | Head | Librarian | Canada |
| 36 | Dorothie Jackson | 19 | Daughter | — | Canada |
| 37 | Colmer Filmer | 34 | Head | Laborer | Wash |
| 38 | Gladys Filmer | 29 | Wife | — | Mich. |
| 39 | Robert Filmer | 5 | Son | — | Wash |
| 40 | Millard Nas | 32 | Head | Truck Driver | Wash |
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)