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Mary Wheeler — 1940 US Census Record
Model Tree available1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this Mary Wheeler across the 1920, 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed), with identified parents Frank & Florence — first a daughter (b.~1914), then head of a 2-person household.
Age 26
b. ~1914
Female
Daughter
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Francisco-County, California |
| Surname | Wheeler |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Additional Details | |
| Occupation | Clerk |
| Industry | W.P.A. |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 2669 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Clerk |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1914 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Wheeler | Daughter | — | 26 | ~1914 |
| Florence Wheeler | Head | — | 51 | ~1889 |
Census Appearances
1920
San Francisco, …
Daughter, age 6
San Francisco, California · implied b. ~1914 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wheeler |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | New York |
| Mother's Birthplace | Oregon |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
San Francisco, …
Daughter, age 16
San Francisco, California · implied b. ~1914 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wheeler |
| Given Name | Mary F. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | New York |
| Mother's Birthplace | Oregon |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Daughter, age 26
San-Francisco-County, California · implied b. ~1914 — 2 household members
| Surname | Wheeler |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Occupation | Clerk |
| Industry | W.P.A. |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 2669 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 Wheeler across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Frank Wheeler (~0.92 confidence) and mother Florence Wheeler (~0.92 confidence) and mother Elmira Wheeler (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frank Wheeler
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Florence Wheeler
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Elmira Wheeler
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Wheeler
Daughter · 1940 · age 26 · b. ~1914 · 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 — San-Francisco-County, California
Open full size
1940 US Federal Census — San-Francisco-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00308-00635)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frances Marsdell | 29 | Wife | — | California |
| 2 | Reginald Jacques | 42 | Head | Chiropractor | Washington |
| 3 | Jessie Jacques | 44 | Wife | — | California |
| 4 | Reginald Jr. Jacques | 5 | Son | — | California |
| 5 | August Chopin | 47 | Head | Washer | France |
| 6 | Mercedes Chopin | 47 | Wife | Seamstress | France |
| 7 | Robert Chopin | 12 | Son | — | California |
| 8 | John Mundy | 72 | Head | — | Mass. |
| 9 | Catherine Mundy | 61 | Wife | — | Minnesota |
| 10 | Harry Mundy | 25 | Son | Clerk | California |
| 11 | Bernard Mundy | 21 | Son | — | South Dakota |
| 12 | Levin Murray | 37 | Head | Driver | California |
| 13 | Annie Murray | 27 | Wife | — | Washington |
| 14 | William Murray | 5 | Son | — | California |
| 15 | Beverly Murray | 4 | Daughter | — | California |
| 16 | Toni Gualtieri | 18 | Sister-in-law | — | California |
| 17 | Ray Mooney | 33 | Head | Merchant | New York |
| 18 | Catherine Mooney | 32 | Wife | — | California |
| 19 | Miss Information | None | — | — | — |
| 20 | William Cubitt | 31 | Head | Operator | Kansas |
| 21 | Marion Cubitt | 28 | Wife | — | California |
| 22 | William Costa | 6 | Step-son | — | California |
| 23 | Otto Martens | 58 | Head | Operator | Germany |
| 24 | Johanna Martens | 56 | Wife | — | Austria |
| 25 | Henry Martens | 25 | Son | Operator | California |
| 26 | Florence Wheeler | 51 | Head | Secretary | Oregon |
| 27 | Mary Wheeler THIS PERSON | 26 | Daughter | Clerk | California |
| 28 | Michael Devviam | 61 | Head | Stevedore | Canada |
| 29 | James Brogam | 54 | Head | Teacher | Eire |
| 30 | Louise Jehl | 60 | Head | — | Germany |
| 31 | Ellen Argenti | 70 | Head | — | California |
| 32 | Robert O'Niel | 46 | Head | Fitter | California |
| 33 | Elsie O'Niel | 43 | Wife | — | Indiana |
| 34 | William Schmalslau | 65 | Head | — | New York |
| 35 | Edward Garliche | 55 | Head | — | California |
| 36 | Mayme Garliche | 48 | Wife | — | Nebraska |
| 37 | Pierre Verve | 59 | Head | Laborer | France |
| 38 | Katharine Verve | 52 | Wife | — | France |
| 39 | Daniel Verve | 21 | Brother | Apprentice | California |
| 40 | Rene Chouvre | 20 | Son-step | Teller | California |
Pedigree Summary
Mary
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)