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Mary Osborn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Alameda-County, California
Our Model Tree links this Mary Osborn across the 1930 and 1940 US Censuses in Alameda-County, California (XGBoost, ~Confirmed) — first a spouse (b.~1881), then head of a 6-person household.
Age 59
b. ~1881
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Alameda-County, California |
| Surname | Osborn |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Oakland |
| 1935 Residence (County) | Alameda |
| Additional Details | |
| Highest Grade | Hs 1 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Oakland |
| Est. Birth Year | ~1881 |
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 |
|---|---|---|---|---|
| Mary Osborn | Spouse | — | 59 | ~1881 |
| William Osborn | Son | — | 27 | ~1913 |
| Ruth Osborn | Daughter | — | 25 | ~1915 |
| Thomas Osborn | Son | — | 14 | ~1926 |
| Richard Osborn | Head | — | 60 | ~1880 |
| Jack Osborn | Son | — | 10 | ~1930 |
Census Appearances
1930
Alameda, California
Spouse, age 47
Alameda, California · implied b. ~1883 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Osborne |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 24 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Alameda-County, California
Spouse, age 59
Alameda-County, California · implied b. ~1881 — 6 household members
| Surname | Osborn |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Oakland |
| 1935 Residence (County) | Alameda |
| Highest Grade | Hs 1 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Osborn across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Osborn
Spouse · 1940 · age 59 · b. ~1881 · 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
40 people indexed on this census page (nara:1940:m-t0627-00436-00317)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John R. Keyday | 64 | Brother | Salesman | Kentucky |
| 2 | Joseph Stamper | 48 | Head | Welder | Tennessee |
| 3 | Thelma Stamper | 35 | Wife | Secretary | California |
| 4 | Mattie E. Allyn | 71 | Head | — | California |
| 5 | Irene D. Allyn | 38 | Daughter | Secretary | Missouri |
| 6 | Annetta Davidson | 25 | Head | — | California |
| 7 | Henry J. Hunsal | 56 | Head | Glass Worker | Iowa |
| 8 | Augusta Hunsal | 46 | Wife | — | California |
| 9 | Helene L. Hunsal | 20 | Daughter | — | California |
| 10 | Clifford B. Davis | 44 | Head | Baker | Oregon |
| 11 | Mabel J. Davis | 36 | Wife | — | California |
| 12 | Betty J. Davis | 11 | Daughter | — | California |
| 13 | Clifford Jr. Davis | 9 | Son | — | California |
| 14 | Shirley A. Davis | 7 | Daughter | — | California |
| 15 | Father Joseph C. | None | M | — | — |
| 16 | Unable To Locate Moore | None | — | — | — |
| 17 | — | None | — | — | — |
| 18 | — | None | — | — | — |
| 19 | Mattie E. Sears | 58 | Head | Teacher | Nebraska |
| 20 | James L. Tasta | 52 | Head | Maintenance | Washington |
| 21 | Anna B. Tasta | 50 | Wife | — | California |
| 22 | Donald C. Tasta | 19 | Son | Grocery Clerk | California |
| 23 | Lois J. Tasta | 19 | Daughter | — | California |
| 24 | Richard N. Osborn | 60 | Head | Sheet Metal Worker | Kentucky |
| 25 | Mary E. Osborn THIS PERSON | 59 | Wife | — | Iowa |
| 26 | William B. Osborn | 27 | Son | Sheet Metal | California |
| 27 | Ruth Osborn | 25 | Daughter | Office Work | California |
| 28 | Thomas R. Osborn | 14 | Son | — | California |
| 29 | Jack R. Osborn | 10 | Son | — | California |
| 30 | William Mitchell | 45 | Head | Tool Operator | New York |
| 31 | Nell Mitchell | 40 | Wife | Office Clerk | California |
| 32 | Mary Mitchell | 18 | Daughter | — | California |
| 33 | Fuonelda Foye | 51 | Head | — | California |
| 34 | Paul W. Foye | 21 | Son | Factory Worker | California |
| 35 | Herbert L. Foye | 19 | Son | Office Boy | California |
| 36 | Margaret Laberge | 50 | Head | Traffic Director | California |
| 37 | Margaret Decato | 75 | Housekeeper | Housekeeper | California |
| 38 | Emma R. Powell | 58 | Head | Teacher | California |
| 39 | Elsie F. Brunner | 53 | Lodger | Teacher | Kansas |
| 40 | Ivy M. Mcintosh | 59 | Head | — | Washington |
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)