MH
Mary Heath — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Alameda-County, California
Our Model Tree links this Mary Heath across the 1930 and 1940 US Censuses in Alameda-County, California (XGBoost, ~Confirmed) — first a spouse (b.~1885), then head of a 6-person household.
Age 55
b. ~1885
Female
Spouse
Born: Sweden
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Alameda-County, California |
| Surname | Heath |
| Given Name | Mary A |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Oakland |
| 1935 Residence (County) | Alameda |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Housewife |
| Class of Worker | H |
| Hours Worked | 5 |
| Highest Grade | H 4 |
| 1935 Residence | Calif |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
| Occupation | Housewife |
| Township / Ward | Oakland City |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Scott Heath | Head | — | 56 | ~1884 |
| Lyle Heath | Daughter | — | 19 | ~1921 |
| Wm Heath | Son | — | 31 | ~1909 |
| Helen Heath | Daughter | — | 32 | ~1908 |
| Leslie Heath | Son | — | 15 | ~1925 |
| Mary Heath | Spouse | — | 55 | ~1885 |
Census Appearances
1930
Alameda, California
Spouse, age 44
Alameda, California · implied b. ~1886 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Heath |
| Given Name | Mary A |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Sweden |
| Naturalization Status | Naturalized |
| Year of Immigration | 1893 |
| 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
Alameda-County, California
Spouse, age 55
Alameda-County, California · implied b. ~1885 — 6 household members
| Surname | Heath |
| Given Name | Mary A |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Oakland |
| 1935 Residence (County) | Alameda |
| Naturalization Status | Naturalized |
| Occupation | Housewife |
| Class of Worker | H |
| Hours Worked | 5 |
| Highest Grade | H 4 |
| 1935 Residence | Calif |
| 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 Heath across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Heath
Spouse · 1940 · age 55 · b. ~1885 · 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 — Alameda-County, California
Open full size
1940 US Federal Census — Alameda-County, California
Page Contents
35 people indexed on this census page (nara:1940:m-t0627-00441-00547)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Scott W Heath | 56 | Head | Carpenter | Utah |
| 2 | Mary A Heath THIS PERSON | 55 | Wife | Housewife | Sweden |
| 3 | Helen M Heath | 32 | Daughter | Cosmetologist | Oakland |
| 4 | Wm R Heath | 31 | Son | Lens Making | Utah |
| 5 | Lyle Heath | 19 | Daughter | Typing | Oakland |
| 6 | Leslie F Heath | 15 | Son | — | Same place |
| 7 | Joseph P Freeman | 28 | Head | Truck Driver | Ireland |
| 8 | Kathryn C Freeman | 26 | Wife | Steno Bookkeeper | California |
| 9 | Frank Callan | 43 | Head | Truck Driver | Calif |
| 10 | Mary M Callan | 42 | Wife | Housewife | Same place |
| 11 | Barbara F Callan | 8 | Daughter | — | Calif |
| 12 | Catherine Callan | 78 | Mother | Housewife | Eire |
| 13 | Carl C Chappell | 50 | Head | Truck Driver | Oregon |
| 14 | Alice M Chappell | 44 | Wife | Housewife | Colorado |
| 15 | Jean Chappell | 20 | Daughter | Housewife | Calif |
| 16 | Susan Vitte | 1 | Granddaughter | — | Calif |
| 17 | Bertha Feldman | 47 | Head | Housewife | Russia |
| 18 | Gertrude Feldman | 25 | Daughter | Proof Reading | Russia |
| 19 | Jack Feldman | 13 | Son | — | Calif |
| 20 | Paul G Bradley | 23 | Son | Mechanics | Calif |
| 21 | Rosella E Bradley | 44 | Head | Office | Italy |
| 22 | Benjamin H Riley | 48 | Head | Auto Mech | California |
| 23 | Gladys A Riley | 46 | Wife | Housewife | Same place |
| 24 | Alice M Brown | 76 | Mother | Housewife | Illinois |
| 25 | Jas F Irvine | 28 | Head | Office | Arizona |
| 26 | Mercedes Irvine | 28 | Wife | Housewife | Calif |
| 27 | Joan G Irvine | 1 | Daughter | — | Calif |
| 28 | Claude Frederickson | 38 | Head | Dist Maint | Calif |
| 29 | Bertha J Frederickson | 13 | Daughter | — | Oakland |
| 30 | Roy M Frederickson | 9 | Son | — | Same place |
| 31 | Mildred E Blum | 50 | Head | Reg Nurse | Ohio |
| 32 | Susan P Blum | 18 | Daughter | — | Ohio |
| 33 | Nellie R Eyer | 81 | Mother | Retired | Ohio |
| 34 | Robert M Scott | 22 | Head | Asst Mgr | Calif |
| 35 | Dorothy Scott | 24 | Wife | Stenographer | Calif |
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)