FR
Fred Roberts — 1940 US Census Record
Model Tree available1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Fred Roberts across the 1920, 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed), with identified parents Frederick & Thomas — first a son (b.~1911), then head of a 4-person household.
Age 29
b. ~1911
Male
Son
Born: California
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Roberts |
| Given Name | Fred |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Occupation | Boiler Maker |
| Industry | Steam Railroad |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1664 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Boiler Maker |
| Township / Ward | Los Angeles City |
| Est. Birth Year | ~1911 |
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 Fred | Age | Birth yr |
|---|---|---|---|---|
| Thomas Roberts | Head | — | 68 | ~1872 |
| Lucy Roberts | Spouse | — | 67 | ~1873 |
| Woodrow Roberts | Other | — | 22 | ~1918 |
| Fred Roberts | Son | — | 29 | ~1911 |
Census Appearances
1920
Los Angeles, …
Son, age 9
Los Angeles, California · implied b. ~1911 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Roberts |
| Given Name | Francis |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Kansas |
| Mother's Birthplace | California |
| Can Read | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Los Angeles, …
Son, age 19
Los Angeles, California · implied b. ~1911 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Roberts |
| Given Name | Francis |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Kansas |
| Mother's Birthplace | California |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Los-Angeles-County, California
Son, age 29
Los-Angeles-County, California · implied b. ~1911 — 4 household members
| Surname | Roberts |
| Given Name | Fred |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Occupation | Boiler Maker |
| Industry | Steam Railroad |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1664 |
| 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 Fred Roberts across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Frederick Roberts (~0.92 confidence) and father Thomas Roberts (~0.92 confidence) and mother Lucy Roberts (~0.92 confidence) and mother Verona Roberts (~0.92 confidence) and mother Verona Roberts (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frederick Roberts
b. ~1878
Source father
● Household
· direct · ~0.92
Father
Thomas Roberts
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Lucy Roberts
b. ~1873
Source mother
● Household
· direct · ~0.92
Mother
Verona Roberts
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Verona Roberts
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Fred Roberts
Son · 1940 · age 29 · b. ~1911 · 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 — Los-Angeles-County, California
Open full size
1940 US Federal Census — Los-Angeles-County, California
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00389-00608)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Tex Baird | 49 | Father in law | Bartender | Iowa |
| 42 | Thomas Baird | 20 | Brother in law | None | California |
| 43 | Marylin Crouch | 11 | Lodger | — | California |
| 44 | Beverly Crouch | 7 | Lodger | — | California |
| 45 | Nellie Ulrich | 68 | Head | None | Minnesota |
| 46 | Marion Vandlingstee | 48 | Daughter | None | No Dakota |
| 47 | Hiram M. Vandlingstee | 55 | Son | Superintendent | California |
| 48 | Martin Litton | 36 | Head | Plumber | So Dakota |
| 49 | Carol Litton | 25 | Wife | School Teacher | New York |
| 51 | Alfred G. Wahlstein | 63 | Head | Cabinet Maker | Sweden |
| 52 | Marion Wahlstein | 44 | Wife | None | Iowa |
| 53 | Mary E. Wahlstein | 15 | Daughter | New Worker | California |
| 54 | Priscilla Wahlstein | 12 | Daughter | — | California |
| 55 | Joy Wahlstein | 1 | Daughter | — | California |
| 56 | Charles Minnick | 65 | Head | None | Indiana |
| 57 | Annie Minnick | 63 | Wife | None | Georgia |
| 58 | Earnest J. Hessling | 29 | Head | Supt. Mexican Missions | Kansas |
| 59 | Genevieve Hessling | 30 | Wife | Book Keeping | Pennsylvania |
| 60 | Gertrude Hessling | 57 | Mother | Secretary | Minnesota |
| 61 | B. Nelson Tefft | 64 | Head | Proprietor & Carpenter | New York |
| 62 | Hattie Tefft | 69 | Wife | None | New York |
| 63 | Heather Tefft | 44 | Daughter | None | New York |
| 64 | Lee O. Tefft | 41 | Son | Carpenter Helper | New York |
| 65 | Robert O. Bush | 39 | Head | Postal Clerk | California |
| 66 | Dorothy Bush | 36 | Wife | None | Missouri |
| 67 | Ronald R. Bush | 14 | Son | — | California |
| 68 | Phebe A. Bush | 76 | Head | None | New York |
| 69 | Wesley G. Bush | 49 | Son | Carpenter | Iowa |
| 70 | Vivian H. Bush | 45 | Son | Plasterer Helper | Iowa |
| 71 | Lurena Keener | 69 | Nurse | Practical Nurse | Illinois |
| 72 | Finis E. Baldwin | 23 | Head | Plasterer | Texas |
| 73 | Cordelia O. Baldwin | 19 | Wife | None | Texas |
| 74 | Adair C. Grove | 36 | Head | Electric Appliance Repairman | Missouri |
| 75 | Ruth E. Grove | 41 | Wife | None | Colorado |
| 76 | Robert A. Grove | 12 | Son | — | California |
| 77 | Thomas A. Roberts | 68 | Head | Bolt Header Laborer | Iowa |
| 78 | Lucy Roberts | 67 | Wife | None | England |
| 79 | Woodrow Roberts | 22 | Nephew | Fire Lighter | Iowa |
| 80 | Fred Roberts THIS PERSON | 29 | Son | Boiler Maker | California |
Pedigree Summary
Fred
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)