MS
Mary Souza — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Alameda-County, California
Our Model Tree links this Mary Souza across the 1920, 1930 and 1940 US Censuses in Alameda-County, California (XGBoost, ~Confirmed) — first a head (b.~1886), then head of a 3-person household.
Age 54
b. ~1886
Female
Head
Born: Hawaii
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Alameda-County, California |
| Surname | Souza |
| Given Name | Mary P. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Widowed |
| Birthplace | Hawaii |
| 1935 Residence (City) | Hayward |
| 1935 Residence (County) | Alameda |
| Additional Details | |
| Occupation | ironer |
| Industry | laundry |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 650 |
| Highest Grade | No |
| 1935 Residence | Same place |
| Birth State | Hawaii |
| Birth Country | United States |
| Birthplace (normalized) | hawaii |
| Occupation | Ironer |
| Township / Ward | Hayward |
| Est. Birth Year | ~1886 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Souza | Head | — | 54 | ~1886 |
| Melvin Mello | Other | — | 14 | ~1926 |
| Marie Souza | Daughter | — | 20 | ~1920 |
Census Appearances
1920
Alameda, California
Spouse, age 33
Alameda, California · implied b. ~1887 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Souza |
| Given Name | Mary |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Hawaii |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Occupation | spoolman |
| Industry | cotton mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Hawaii |
| Birth Country | United States |
| Birthplace (normalized) | hawaii |
1930
Alameda, California
Spouse, age 44
Alameda, California · implied b. ~1886 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Souza |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Hawaii |
| Age at First Marriage | 16 |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Can Read/Write | Yes |
| Birth State | Hawaii |
| Birth Country | United States |
| Birthplace (normalized) | hawaii |
1940
Alameda-County, California
Head, age 54
Alameda-County, California · implied b. ~1886 — 3 household members
| Surname | Souza |
| Given Name | Mary P. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Widowed |
| Birthplace | Hawaii |
| 1935 Residence (City) | Hayward |
| 1935 Residence (County) | Alameda |
| Occupation | ironer |
| Industry | laundry |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 650 |
| Highest Grade | No |
| 1935 Residence | Same place |
| Birth State | Hawaii |
| Birth Country | United States |
| Birthplace (normalized) | hawaii |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Souza
Head · 1940 · age 54 · b. ~1886 · California
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Alameda-County, California
Open full size
1940 US Federal Census — Alameda-County, California
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00184-00024)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Axel G. Burkman | 52 | Head | Molder | Sweden |
| 2 | Agnes Burkman | 43 | Wife | None | Kansas |
| 3 | Anna Mae Scott | 25 | Head | Trained Nurse | Arkansas |
| 4 | Alta E. Marshall | 53 | Head | Housework | Nebraska |
| 5 | Vernon Marshall | 19 | Son | Apprentice Carpenter | Nebraska |
| 6 | Clifford Allen | 38 | Head | Painter | Iowa |
| 7 | Nelly E. Allen | 28 | Wife | Sandwich Girl | Illinois |
| 8 | Clifford Goddard | 24 | Head | Clothespuller | Nebraska |
| 9 | Edna Goddard | 24 | Wife | Waitress | Nebraska |
| 10 | Charles J. Lana | 39 | Head | Proprietor | Kansas |
| 11 | Mae Lana | 38 | Wife | Proprietor | Kansas |
| 12 | Robert C. Rouse | 40 | Head | Salesman | Nebraska |
| 13 | Kathryn Rouse | 42 | Wife | — | Nebraska |
| 14 | Richard Rouse | 10 | Son | — | Nebraska |
| 15 | Robert Rouse | 12 | Son | — | Nebraska |
| 16 | Mary P. Souza THIS PERSON | 54 | Head | Ironer | Hawaii |
| 17 | Marie Souza | 20 | Daughter | — | California |
| 18 | Melvin Mello | 14 | Grandson | — | California |
| 19 | Rudolph J. Reimers | 50 | Head | Carpenter | California |
| 20 | Virginia Reimers | 48 | Wife | — | California |
| 21 | Paul R. Schroeder | 54 | Head | Proprietor | Germany |
| 22 | Anna Schroeder | 50 | Wife | Barber | Pennsylvania |
| 24 | Elvin R. Abrott | 38 | Head | Proprietor | California |
| 25 | Julia E. Abrott | 33 | Wife | Advertising | California |
| 26 | William Hutchison | 64 | Brother-in-law | — | Ohio |
| 27 | Ida May Hutchison | 60 | Mother | — | California |
| 28 | George H. Williams | 48 | Head | Proprietor | California |
| 29 | Beatrice Williams | 48 | Wife | — | California |
| 30 | Robert Williams | 18 | Son | — | California |
| 31 | Arta Williams | 16 | Daughter | — | California |
| 32 | William H. Christiansen | 63 | Head | Carpenter | California |
| 33 | Henrietta Christiansen | 41 | Wife | Elementary Teacher | California |
| 34 | Thomas B. Russell | 44 | Head | Proprietor | California |
| 35 | Carrie Russell | 45 | Wife | — | California |
| 36 | Eleanor Russell | 16 | Daughter | — | California |
| 37 | Barbara Russell | 15 | Daughter | — | California |
| 38 | Harry Dixon | 38 | Head | Office Manager | Nebraska |
| 39 | Sally Dixon | 32 | Wife | — | California |
| 40 | Donna Dixon | 7 | 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)