MS
Mary Souza — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Placer-County, California
Our Model Tree links this Mary Souza across the 1930 and 1940 US Censuses in Placer-County, California (XGBoost, ~Confirmed) — first a head (b.~1890), then head of a 10-person household.
Age 50
b. ~1890
Female
Head
Born: Azore Island
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Placer-County, California |
| Surname | Souza |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Widowed |
| Birthplace | Azore Island |
| 1935 Residence (City) | Bowman |
| 1935 Residence (County) | Placer |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 0 |
| 1935 Residence | Same place |
| Birthplace (normalized) | azore island |
| Occupation | Farmer |
| Township / Ward | Bowman |
| Est. Birth Year | ~1890 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Souza | Head | — | 50 | ~1890 |
| Clarence Souza | Son | — | 15 | ~1925 |
| Eddie Souza | Son | — | 14 | ~1926 |
| Carol Souza | Son | — | 14 | ~1926 |
| Geraldine Souza | Daughter | — | 17 | ~1923 |
| Louis Souza | Son | — | 19 | ~1921 |
| John Souza | Son | — | 15 | ~1925 |
| Jane Souza | Daughter | — | 12 | ~1928 |
| Peter Fernandez | Other | — | 50 | ~1890 |
| Frank Souza | Son | — | 26 | ~1914 |
Census Appearances
1930
Placer, California
Head, age 40
Placer, California · implied b. ~1890 — 14 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Souza |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Widowed |
| Birthplace | Azore Island |
| Naturalization Status | Naturalized |
| Year of Immigration | 1900 |
| Age at First Marriage | 20 |
| Father's Birthplace | Azore Island |
| Mother's Birthplace | Azore Island |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | E |
| Can Read/Write | Yes |
| Mother Tongue | Portuguese |
| Home Owned/Rented | O |
| Home Value / Rent | 6000 |
| Birthplace (normalized) | azore island |
1940
Placer-County, California
Head, age 50
Placer-County, California · implied b. ~1890 — 10 household members
| Surname | Souza |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Widowed |
| Birthplace | Azore Island |
| 1935 Residence (City) | Bowman |
| 1935 Residence (County) | Placer |
| Naturalization Status | Naturalized |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 0 |
| 1935 Residence | Same place |
| Birthplace (normalized) | azore island |
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 Souza across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Souza
Head · 1940 · age 50 · b. ~1890 · California
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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 — Placer-County, California
Open full size
1940 US Federal Census — Placer-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00275-00389)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Franklin Knox | 25 | Son in law | Laborer | Oregon |
| 2 | Joseph Wanders | 26 | Lodger | Laborer | Michigan |
| 3 | Ronald Hill | 25 | Lodger | — | California |
| 4 | Knute Olson | 56 | Head | Farmer | Sweden |
| 5 | Hedwig Olson | 56 | Wife | — | Sweden |
| 6 | Everett Olson | 24 | Son | Groundman | California |
| 7 | Nellie Olson | 23 | Daughter | Housework | California |
| 8 | Conley Sutton | 33 | Head | Farmer | Missouri |
| 9 | Mary Sutton | 32 | Wife | — | California |
| 10 | James Hinton | 61 | Head | Miner | Kentucky |
| 11 | Joseph Foster | 61 | Head | Miner | California |
| 12 | Maude Foster | 56 | Wife | — | Iowa |
| 13 | Genevieve Foster | 16 | Daughter | — | California |
| 14 | Joseph Foster | 14 | Son | — | California |
| 15 | Alfred Foster | 12 | Son | — | California |
| 16 | Patrick Harley | 21 | Stepson | Laborer | California |
| 17 | George Handel | 60 | Head | — | Norway |
| 18 | Anna Handel | 56 | Sister | — | Norway |
| 19 | Mary Souza THIS PERSON | 50 | Head | Farmer | Azore Island |
| 20 | Frank Souza | 26 | Son | Clerk | California |
| 21 | Louis Souza | 19 | Son | Farmer | California |
| 22 | John Souza | 15 | Son | Farmer | California |
| 23 | Geraldine Souza | 17 | Daughter | — | California |
| 24 | Clarence Souza | 15 | Son | — | California |
| 25 | Eddie Souza | 14 | Son | — | California |
| 26 | Carol Souza | 14 | Son | — | California |
| 27 | Jane Souza | 12 | Daughter | — | California |
| 28 | Peter Fernandez | 50 | Farm hand | Laborer | Spain |
| 29 | Morizo H'Noch | 60 | Head | Laborer | Japan |
| 30 | Max Ammon | 52 | Head | Farmer | California |
| 31 | Maxine Ammon | 19 | Daughter | — | California |
| 32 | June Foster | 22 | Daughter | Clerk | California |
| 33 | Leland Landy | 23 | Son in law | Assayer | California |
| 34 | Steve Samesa | 41 | Head | Foreman | Japan |
| 35 | Tami Samesa | 36 | Wife | — | Japan |
| 36 | Yoshiko Samesa | 16 | Daughter | — | California |
| 37 | Ruth Samesa | 13 | Daughter | — | California |
| 38 | Sakiye Samesa | 10 | Daughter | — | California |
| 39 | Sabaye Samesa | 8 | Daughter | — | California |
| 40 | Haguye Samesa | 5 | Daughter | — | California |
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)