RG
Ruth Gray — 1940 US Census Record
Linked across censuses1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this Ruth Gray across the 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed) — first a spouse (b.~1901), then head of a 8-person household.
Age 39
b. ~1901
Female
Spouse
Born: California
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Francisco-County, California |
| Surname | Gray |
| Given Name | Ruth |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | SAN FRANCISCO |
| 1935 Residence (County) | SAN FRANCISCO |
| Additional Details | |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1901 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ruth | Age | Birth yr |
|---|---|---|---|---|
| Ruth Gray | Spouse | — | 39 | ~1901 |
| Ruth Gray | Daughter | — | 6 | ~1934 |
| Mary Gray | Daughter | — | 8 | ~1932 |
| Catharine Gray | Daughter | — | 1 | ~1939 |
| John Gray | Son | — | 8 | ~1932 |
| Albert Gray | Head | — | 41 | ~1899 |
| David Gray | Son | — | 12 | ~1928 |
| Albert Gray | Son | — | 17 | ~1923 |
Census Appearances
1930
Marin, California
Spouse, age 29
Marin, California · implied b. ~1901 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gray |
| Given Name | Ruth |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | California |
| Age at First Marriage | 24 |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Francisco-County, California
Spouse, age 39
San-Francisco-County, California · implied b. ~1901 — 8 household members
| Surname | Gray |
| Given Name | Ruth |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | SAN FRANCISCO |
| 1935 Residence (County) | SAN FRANCISCO |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 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 Ruth Gray across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ruth Gray
Spouse · 1940 · age 39 · b. ~1901 · 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 — San-Francisco-County, California
Open full size
1940 US Federal Census — San-Francisco-County, California
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00309-00519)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Cullen | 79 | Mother-in-law | — | Irish Free State |
| 2 | Albert Gray | 41 | Head | Automobile Mechanic | California |
| 3 | Ruth Gray THIS PERSON | 39 | Wife | — | California |
| 4 | Albert Gray | 17 | Son | — | California |
| 5 | David Gray | 12 | Son | — | California |
| 6 | Mary Gray | 8 | Daughter | — | California |
| 7 | John Gray | 8 | Son | — | California |
| 8 | Ruth Gray | 6 | Daughter | — | California |
| 9 | Catharine Gray | 1 | Daughter | — | California |
| 10 | John J. Fitzpatrick | 71 | Head | Salesman | Irish Free State |
| 11 | Margaret T. Fitzpatrick | 36 | Daughter | — | California |
| 12 | David Fitzpatrick | 7 | Grandson | — | California |
| 13 | Catherine Bray | 59 | Head | — | California |
| 14 | Vincent E. Bray | 31 | Son | Salesman | California |
| 15 | Bernard Bray | 25 | Son | Investigator | California |
| 16 | Adelaide Renn | 55 | Head | — | Canada |
| 17 | Charles Renn | 31 | Son | Proprietor | California |
| 18 | Harvey G. Renn | 28 | Son | Seaman | California |
| 19 | Alan Renn | 21 | Son | Plumbers Helper | California |
| 20 | Lois Renn | 18 | Daughter | Clerical | California |
| 21 | Steven Meagher | 51 | Head | Clerk | New York |
| 22 | Joseph Meagher | 23 | Son | Clerk | California |
| 23 | Frank Meagher | 17 | Son | — | California |
| 24 | Mary Shanahan | 57 | Sister-in-law | — | California |
| 25 | George Kindberg | 64 | Head | Electrician | California |
| 26 | Margaret Kindberg | 60 | Wife | — | California |
| 27 | Arthur Kindberg | 28 | Son | Oiler | California |
| 28 | Albert J. Johnson | 38 | Head | Fireman | California |
| 29 | John Mcatee | 38 | Head | Foreman | Canada |
| 30 | John Mcatee | 13 | Son | — | Illinois |
| 31 | William Mcatee | 8 | Son | — | Illinois |
| 32 | Stephen Wargo | 27 | Head | Apprentice Lithographer | Penn |
| 33 | Joan Wargo | 18 | Wife | — | California |
| 34 | Carl Johnson | 42 | Head | Painter Contractor | Sweden |
| 35 | Stella Johnson | 39 | Wife | — | Kentucky |
| 36 | John Duba | 29 | Head | Mechanic | New Orleans |
| 37 | Sally Duba | 25 | Wife | Seamstress | California |
| 38 | Alfred Dionne | 54 | Head | Carpenter | Connecticut |
| 39 | Evelyn Dionne | 56 | Wife | — | Connecticut |
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)