RJ
Richard Jones — 1940 US Census Record
Model Tree available1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this Richard Jones across the 1920, 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed), with identified parents Frieda & John — first a son (b.~1917), then head of a 3-person household.
Age 23
b. ~1917
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Francisco-County, California |
| Surname | Jones |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Additional Details | |
| Occupation | Clerk |
| Industry | Stock & Bonds |
| Class of Worker | PW |
| Hours Worked | 0 |
| Income (1939) | 960 |
| Highest Grade | C 2 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Clerk |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1917 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Richard | Age | Birth yr |
|---|---|---|---|---|
| Grace Jones | Daughter | — | 35 | ~1905 |
| Frieda Jones | Head | — | 62 | ~1878 |
| Richard Jones | Son | — | 23 | ~1917 |
Census Appearances
1920
San Francisco, …
Son, age 1
San Francisco, California · implied b. ~1919 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Richard |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Occupation | none |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
San Francisco, …
Son, age 11
San Francisco, California · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | California |
| 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
Son, age 23
San-Francisco-County, California · implied b. ~1917 — 3 household members
| Surname | Jones |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Francisco |
| 1935 Residence (County) | San Francisco |
| Occupation | Clerk |
| Industry | Stock & Bonds |
| Class of Worker | PW |
| Hours Worked | 0 |
| Income (1939) | 960 |
| Highest Grade | C 2 |
| 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 Richard Jones across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Frieda Jones (~0.92 confidence) and father John Jones (~0.92 confidence) and father Richard Jones (~0.92 confidence) and mother Eva Jones (~0.92 confidence) and mother Alma Jones (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Frieda Jones
b. ~1878
Source mother
● Household
· direct · ~0.92
Father
John Jones
b. ~1880
Source father
● Household
· direct · ~0.92
Father
Richard Jones
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Eva Jones
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Alma Jones
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Richard Jones
Son · 1940 · age 23 · b. ~1917 · California
★ You are viewing this record
Sibling
Grace Jones
Sibling · 1940 · age 35
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 — 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-t0627-00321-00044)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ethel A Mcmullin | 54 | Wife | Cashier | California |
| 2 | Frieda Jones | 62 | Head | — | Germany |
| 3 | Grace Jones | 35 | Daughter | Secretary | California |
| 4 | Richard Jones THIS PERSON | 23 | Son | Clerk | California |
| 5 | Carl Hagstrom | 43 | Head | Shipfitter | California |
| 6 | Myrtle Hagstrom | 39 | Wife | — | Ohio |
| 7 | Arthur Hagstrom | 13 | Son | — | California |
| 8 | Ben Levy | 39 | Head | Asst Manager | California |
| 9 | Goldie Levy | 43 | Wife | — | California |
| 10 | Ray Flint | 31 | Head | A Salesman | Ohio |
| 11 | Erika Flint | 31 | Wife | — | Oregon |
| 12 | Sharon L Flint | 6 | Daughter | — | Oregon |
| 13 | Consuelo Flint | 3 | Daughter | — | California |
| 14 | Sulo Cavanagh | 39 | Lodger | — | Washington |
| 15 | Merritt Alexander | 47 | Head | — | California |
| 16 | Ernest Alexander | 22 | Son | New Worker | California |
| 17 | Jean A Alexander | 17 | Daughter | — | California |
| 18 | Robert M Alexander | 14 | Son | — | California |
| 19 | Kent Myers | 25 | Head | Salesman | New York |
| 20 | Rosalie Myers | 26 | Wife | — | California |
| 21 | Linda Myers | 1 | Daughter | — | California |
| 22 | Dorothy D Ilberts | 46 | Head | — | California |
| 23 | John Jr Ilberts | 15 | Son | — | Washington |
| 24 | Robert Kaufman | 20 | Son | — | California |
| 25 | William C Koenig | 41 | Head | Asst Postmaster | California |
| 26 | Florence Koenig | 42 | Wife | — | California |
| 27 | William Jr Koenig | 3 | Son | — | California |
| 28 | Evelyn Collins | 40 | Lodger | Clerk Office | California |
| 29 | Julia Collins | 72 | Lodger | — | Irish Free State |
| 30 | Edward Farrell | 72 | Head | — | New York |
| 31 | Nettie R Farrell | 71 | Wife | — | Indiana |
| 32 | Mary Carridan | 66 | Head | — | Ohio |
| 33 | Mary Carridan | 35 | Daughter | Stenographer | California |
| 34 | Emmet Carridan | 26 | Son | Bottler | California |
| 35 | Imelda Carridan | 26 | Daughter | — | California |
| 36 | Thomas Carridan | 5 | Grandson | — | California |
| 37 | Joseph T Gaughan | 37 | Head | Contractor | Colorado |
| 38 | Nina Gaughan | 34 | Wife | — | Nevada |
| 39 | Joseph Jr Gaughan | 5 | Son | — | California |
Pedigree Summary
Richard + 1 sibling
Gen 1 · 5 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)