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Robert Richardson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Alameda-County, California
Our Model Tree links this Robert Richardson across the 1920, 1930 and 1940 US Censuses in Alameda-County, California (XGBoost, ~Confirmed), with identified parents James & Elsie — first a son (b.~1905), then head of a 4-person household.
Age 35
b. ~1905
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Alameda-County, California |
| Surname | Richardson |
| Given Name | Robert J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Oakland |
| 1935 Residence (County) | Alameda |
| Additional Details | |
| Occupation | Salesman |
| Industry | Retail Clothing Store |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1820 |
| Highest Grade | H 2 |
| 1935 Residence | Same House |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Salesman |
| Township / Ward | Oakland |
| Est. Birth Year | ~1905 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Florence Richardson | Daughter | — | 33 | ~1907 |
| Margaret Richardson | Daughter | — | 31 | ~1909 |
| Lizzie Richardson | Head | — | 62 | ~1878 |
| Robert Richardson | Son | — | 35 | ~1905 |
Census Appearances
1920
Alameda, California
Son, age 15
Alameda, California · implied b. ~1905 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Richardson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Alameda, California
Son, age 25
Alameda, California · implied b. ~1905 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Richardson |
| Given Name | Robert J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Scotland |
| Mother's Birthplace | N. Ireland |
| Occupation | Salesman |
| Industry | Drygoods Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Alameda-County, California
Son, age 35
Alameda-County, California · implied b. ~1905 — 4 household members
| Surname | Richardson |
| Given Name | Robert J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Oakland |
| 1935 Residence (County) | Alameda |
| Occupation | Salesman |
| Industry | Retail Clothing Store |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1820 |
| Highest Grade | H 2 |
| 1935 Residence | Same House |
| 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 Robert Richardson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Richardson (~0.92 confidence) and mother Elsie Richardson (~0.92 confidence) and mother Lizzie Richardson (~0.92 confidence) and mother Maggie Richardson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Richardson
b. ~1869
Source father
● Household
· direct · ~0.92
Mother
Elsie Richardson
b. ~1877
Source mother
● Household
· direct · ~0.92
Mother
Lizzie Richardson
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Maggie Richardson
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Richardson
Son · 1940 · age 35 · b. ~1905 · California
★ You are viewing this record
Sibling
Florence Richardson
Sibling · 1940 · age 33
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Richardson
Sibling · 1940 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
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-t0627-00438-00350)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ray A. Bailey | 30 | Head | Accountant | California |
| 42 | Marie L. Bailey | 24 | Wife | — | California |
| 43 | Carol L. Bailey | 4 | Daughter | — | California |
| 44 | Harland B. Hennessey | 35 | Head | Supervisor | California |
| 45 | Barbara A. Hennessey | 31 | Wife | Secretary | California |
| 46 | Patricia S. Hennessey | 6 | Daughter | — | California |
| 47 | Henry M. Olmsted | 60 | Head | Foreman | California |
| 48 | Anna Olmsted | 58 | Wife | — | Minnesota |
| 49 | Lizzie A. Richardson | 62 | Head | — | New Zealand |
| 50 | Robert J. Richardson THIS PERSON | 35 | Son | Salesman | California |
| 51 | Florence E. Richardson | 33 | Daughter | — | California |
| 52 | Margaret E. Richardson | 31 | Daughter | Typist | California |
| 53 | Thomas W. Rhodes | 34 | Head | Policeman | California |
| 54 | Anna C. Rhodes | 34 | Wife | — | California |
| 55 | Vivian E. Levin | 17 | Daughter | — | California |
| 56 | Frank Jorgenson | 21 | Boarder | Elevator Operator | California |
| 57 | Harold Jorgenson | 19 | Boarder | Laborer | California |
| 58 | Roland C. Stahle | 48 | Head | Teller | California |
| 59 | Ruby T. Stahle | 43 | Wife | — | California |
| 60 | Douglas C. Stahle | 19 | Son | — | California |
| 61 | Milo E. Gray | 42 | Head | Salesman | California |
| 62 | Carlotta Gray | 35 | Wife | — | California |
| 63 | Noel G. Gray | 5 | Son | — | Arizona |
| 64 | George A. Woods | 42 | Head | Proprietor | California |
| 65 | Eva M. Woods | 37 | Wife | — | California |
| 66 | — | None | — | — | — |
| 67 | Edward H. Harrison | 52 | Head | Engineer | California |
| 68 | Emma C. Harrison | 51 | Wife | — | California |
| 69 | Florence H. Harrison | 19 | Daughter | — | California |
| 70 | Candido P. Bernal | 65 | Head | — | California |
| 71 | Julia B. Bernal | 66 | Wife | — | California |
| 72 | Lenore P. Bernal | 35 | Daughter | Filing Clerk | California |
| 73 | Julia B. Bernal | 32 | Daughter | — | California |
| 74 | Grace E. Bernal | 22 | Daughter | — | California |
| 75 | John F. Quinn | 77 | Head | — | California |
| 76 | Mary A. Quinn | 75 | Wife | — | California |
| 77 | Sarah E. Quinn | 51 | Daughter | Deputy County Clerk | California |
| 78 | Margaret E. Quinn | 47 | Daughter | — | California |
| 79 | Geraldine M. Quinn | 27 | Daughter | — | California |
| 80 | Paul F. Wiedtke | 53 | Head | Teller | Minnesota |
Pedigree Summary
Robert + 2 siblings
Gen 1 · 4 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)