RP
Robert Peterson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Robert Peterson across the 1920, 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed), with identified parents Alonzo — first a head (b.~1897), then head of a 4-person household.
Age 43
b. ~1897
Male
Head
Born: Utah
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Peterson |
| Given Name | Robert G. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Utah |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Occupation | Truck Driver |
| Industry | Rock & Sand |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 1800 |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
| Occupation | Truck Driver |
| Township / Ward | Los Angeles City |
| Est. Birth Year | ~1897 |
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 |
|---|---|---|---|---|
| Patty Peterson | Daughter | — | 11 | ~1929 |
| Bobbie Peterson | Daughter | — | 14 | ~1926 |
| Robert Peterson | Head | — | 43 | ~1897 |
| Gladys Peterson | Spouse | — | 43 | ~1897 |
Census Appearances
1920
Los Angeles, …
Son, age 25
Los Angeles, California · implied b. ~1895 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Robert E |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | Utah |
| Mother's Birthplace | Illinois |
| Occupation | Laborer |
| Industry | Automobile |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1930
Los Angeles, …
Head, age 34
Los Angeles, California · implied b. ~1896 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Petersen |
| Given Name | Robert G. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Utah |
| Age at First Marriage | 21 |
| Father's Birthplace | Utah |
| Mother's Birthplace | Indiana |
| Occupation | Laborer |
| Industry | Ice Route |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 30 |
| Radio Set | R |
| Veteran | Yes |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1940
Los-Angeles-County, California
Head, age 43
Los-Angeles-County, California · implied b. ~1897 — 4 household members
| Surname | Peterson |
| Given Name | Robert G. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Utah |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Occupation | Truck Driver |
| Industry | Rock & Sand |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 1800 |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
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 Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Alonzo James (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Alonzo James
b. ~1880
Source father
● Household
· direct · ~0.92
This person
Anchor record
Robert Peterson
Head · 1940 · age 43 · b. ~1897 · 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
38 people indexed on this census page (nara:1940:m-t0627-00377-00053)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Cynthia Lawrence | 61 | Mother-in-law | — | Missouri |
| 2 | Edward Lawrence | 19 | Brother-in-law | Milker | Texas |
| 3 | Glenn Bolton | 25 | Head | Mechanic | Missouri |
| 4 | Lorraine Bolton | 26 | Wife | — | California |
| 5 | Barbara L. Bolton | 6 | Daughter | — | California |
| 6 | Gene H. Bolton | 4 | Son | — | California |
| 7 | Ross E. Bolton | 2 | Son | — | California |
| 8 | Leroy Abbey | 30 | Head | Foreman | Missouri |
| 9 | Gladys Abbey | 35 | Wife | — | Idaho |
| 10 | David Abbey | 8 | Son | — | California |
| 11 | Philip Abbey | 5 | Son | — | California |
| 12 | Arthur Meredith | 13 | Step-son | — | Utah |
| 13 | Eileen Meredith | 15 | Step-daughter | — | Utah |
| 14 | Robert G. Peterson THIS PERSON | 43 | Head | Truck Driver | Utah |
| 15 | Gladys Peterson | 43 | Wife | — | Canada-English |
| 16 | Bobbie Peterson | 14 | Daughter | — | California |
| 17 | Patty Peterson | 11 | Daughter | — | California |
| 18 | Jesse W. Palmer | 47 | Head | Plumber Maintenance | Missouri |
| 19 | Edith O. Palmer | 40 | Wife | — | Missouri |
| 20 | James Britt | 30 | Head | Painter | Texas |
| 21 | Jimmy Britt | 8 | Son | — | California |
| 22 | Ray A. Britt | 6 | Son | — | California |
| 23 | Butch Britt | 2 | Son | — | California |
| 24 | Eva Raincoff | 19 | Housekeeper | Housework | California |
| 25 | Lloyd Farrell | 23 | Head | Carpenter | Arkansas |
| 26 | Claudia Farrell | 20 | Wife | — | Texas |
| 27 | Lloyd Lee Jr. Farrell | 0 | Son | — | Texas |
| 28 | George L. Farmer | 56 | Head | Carpenter | Arkansas |
| 29 | Hazel Farmer | 46 | Wife | — | Arkansas |
| 30 | Myrtella Farmer | 10 | Daughter | — | Arkansas |
| 31 | Vera L. Farmer | 18 | Daughter-in-law | Housework | Arkansas |
| 32 | Hazel L. Farmer | 3 | Grand-daughter | — | New Mexico |
| 33 | Johnnie Farmer | 2 | Grand-son | — | Texas |
| 34 | George Greene | 62 | Head | Laborer | Michigan |
| 35 | Roy Greene | 20 | Son | — | Kansas |
| 36 | George Jr. Greene | 19 | Son | — | Kansas |
| 37 | Leo Greene | 10 | Son | — | Kansas |
| 38 | Frank Greene | 5 | Son | — | Kansas |
Pedigree Summary
Robert
Gen 1 · 1 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)