WJ
William Jones — 1940 US Census Record
Model Tree available1940 United States Federal Census · San-Diego-County, California
Our Model Tree links this William Jones across the 1920, 1930 and 1940 US Censuses in San-Diego-County, California (XGBoost, ~Confirmed), with identified parents Hugh & Joseph — first a head (b.~1913), then head of a 4-person household.
Age 27
b. ~1913
Male
Head
Born: California
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Diego-County, California |
| Surname | Jones |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | San Diego City |
| 1935 Residence (County) | San Diego |
| Additional Details | |
| Occupation | Postal clerk |
| Industry | Post office |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 1680 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Postal Clerk |
| Township / Ward | San Diego City |
| Est. Birth Year | ~1913 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Judith Jones | Daughter | — | 2 | ~1938 |
| William Jones | Head | — | 27 | ~1913 |
| William Jones | Son | — | 5 | ~1935 |
| Bernice Jones | Spouse | — | 25 | ~1915 |
Census Appearances
1920
San Diego, …
Son, age 6
San Diego, California · implied b. ~1914 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Utah |
| Mother's Birthplace | Utah |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
San Diego, …
Son, age 16
San Diego, California · implied b. ~1914 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Utah |
| Mother's Birthplace | Utah |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Diego-County, California
Head, age 27
San-Diego-County, California · implied b. ~1913 — 4 household members
| Surname | Jones |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | San Diego City |
| 1935 Residence (County) | San Diego |
| Occupation | Postal clerk |
| Industry | Post office |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 1680 |
| Highest Grade | H-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 William Jones across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Hugh Jones (~0.92 confidence) and father Joseph Jones (~0.92 confidence) and mother Julia Jones (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Hugh Jones
b. ~1877
Source father
● Household
· direct · ~0.92
Father
Joseph Jones
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Julia Jones
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Jones
Head · 1940 · age 27 · b. ~1913 · 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-Diego-County, California
Open full size
1940 US Federal Census — San-Diego-County, California
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00450-00750)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Paul Root | 31 | Head | Signalman | Florida |
| 2 | Willie Mae Root | 31 | Wife | P.B.X. Operator | Georgia |
| 3 | Kenneth Merritt | 13 | Step-son | — | Georgia |
| 4 | Shelly Jr. Merritt | 12 | Step-son | — | Georgia |
| 5 | Maxine Hoffman | 26 | Lodger | Nurse | Oregon |
| 6 | Syrena Bruce | 78 | Head | — | New York |
| 7 | Cora Pierce | 69 | Head | — | Kansas |
| 8 | Charles Christopher | 20 | Head | Mechanic | California |
| 9 | Betty Christopher | 21 | Wife | — | Delaware |
| 10 | Elton Hughes | 26 | Head | Window Cleaner | Kansas |
| 11 | Iva L. Hughes | 22 | Wife | — | Kansas |
| 12 | Pauleta Hughes | 5 | Daughter | — | Kansas |
| 13 | Nancy Lee Hughes | 0 | Daughter | — | California |
| 14 | Clara L. Baldwin | 82 | Head | — | California |
| 15 | Gerald Baldwin | 53 | Son | Part Owner | California |
| 16 | Bernice Anthony | 30 | Grand-daughter | Teacher | California |
| 17 | Grand-Son Edward | None | M | Dairy | — |
| 18 | Carlinda Edward | 2 | Great grand-daughter | — | California |
| 19 | Elizabeth Jackson | 73 | Head | — | California |
| 20 | Priscilla Peters | 62 | Sister | — | California |
| 21 | Peter George | 59 | Head | Waiter | Greece |
| 22 | Fannie George | 44 | Wife | Dressmaker | Virginia |
| 23 | Doris George | 16 | Daughter | — | California |
| 24 | Betty George | 14 | Daughter | — | Arizona |
| 25 | Merle George | 13 | Daughter | — | California |
| 26 | Phillip Spadarine | 30 | Head | P.B.X. Operator Cab Driver | New Jersey |
| 27 | Shirley Spadarine | 28 | Wife | — | Washington |
| 28 | Gloria Spadarine | 10 | Daughter | — | New Mexico |
| 29 | Willard Ladd | 25 | Head | Draw Bench Operator | Missouri |
| 30 | Sylvia Ladd | 20 | Wife | — | Texas |
| 31 | Willard E. Rothrock | 87 | Head | — | Michigan |
| 32 | Ray York | 42 | Head | Bartender | New York |
| 33 | Juanita York | 33 | Wife | — | Oregon |
| 34 | Nellie Baker | 60 | Head | — | Arizona |
| 35 | Oscar Newberry | 56 | Lodger | Motorman | Austria |
| 36 | William Jones THIS PERSON | 27 | Head | Postal Clerk | California |
| 37 | Bernice Jones | 25 | Wife | — | Wisconsin |
| 38 | William Jones | 5 | Son | — | California |
| 39 | Judith Jones | 2 | Daughter | — | California |
Pedigree Summary
William
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)