RT
Ralph Thomas — 1930 US Census Record
Model Tree available1930 United States Federal Census · Los Angeles, California
Our Model Tree links this Ralph Thomas across the 1910, 1920 and 1930 US Censuses in Los Angeles, California (XGBoost, ~Confirmed), with identified parents George & Pauline — first a head (b.~1901), then head of a 3-person household.
Age 29
b. ~1901
Male
Head
Born: Illinois
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Los Angeles, California |
| Surname | Thomas |
| Given Name | Ralph R |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 24 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 15000 |
| Radio Set | R |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | La Crescenta Precinct 2 |
| 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.
3 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Ralph | Age | Birth yr |
|---|---|---|---|---|
| Gertrude Thomas | Spouse | — | 34 | ~1896 |
| Ralph Thomas | Head | — | 29 | ~1901 |
| Robert Thomas | Son | — | 13 | ~1917 |
Census Appearances
1910
Los Angeles, …
Son, age 9
Los Angeles, California · implied b. ~1901 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Ralph R H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Los Angeles, …
Son, age 18
Los Angeles, California · implied b. ~1902 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Ralph R H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Salesman |
| Industry | Oil Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Los Angeles, …
Head, age 29
Los Angeles, California · implied b. ~1901 — 3 household members
| Surname | Thomas |
| Given Name | Ralph R |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 24 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 15000 |
| Radio Set | R |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Ralph Thomas across 3 US Census years (1910, 1920 and 1930) in Los Angeles, California, using XGBoost record linkage. Identified parents: father George Thomas (~0.92 confidence) and mother Pauline Thomas (~0.92 confidence) and father George Thomas (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Thomas
b. ~1865
Source father
● Household
· direct · ~0.92
Mother
Pauline Thomas
b. ~1870
Source mother
● Household
· direct · ~0.92
Father
George Thomas
b. ~1874
Source father
● Household
· direct · ~0.92
This person
Anchor record
Ralph Thomas
Head · 1930 · age 29 · b. ~1901 · California
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Los Angeles, California
Open full size
1930 US Federal Census — Los Angeles, California
Page Contents
50 people indexed on this census page (ia:1930:californiacensus00reel131:0640)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Abraham Buller | 55 | Lodger | Chicken Producer | Russia |
| 52 | Gerald Hendry | 61 | Head | Broker | British West Indies |
| 53 | Eva Hendry | 47 | Wife | — | British West Indies |
| 54 | Barbara M Hendry | 12 | Daughter | — | Washington |
| 55 | John Slutman | 57 | Head | Carpenter | Kansas |
| 56 | Alfreda Slutman | 49 | Wife | — | England |
| 57 | Robert Slutman | 19 | Son | — | California |
| 58 | Eva Slutman | 17 | Daughter | — | California |
| 59 | Frank B Howard | 45 | Head | Stationary Engineer | Indiana |
| 60 | Marie C Jensen | 45 | Head | — | Germany |
| 61 | Edna H Jensen | 23 | Daughter | Saleswoman | Nebraska |
| 62 | Helena G Jensen | 19 | Daughter | — | Nebraska |
| 63 | Johan Schmidt | 48 | Lodger | Proprietor | Germany |
| 64 | Oscar Reece | 35 | Head | Mechanic | Maryland |
| 65 | Hattie Reece | 29 | Wife | Operator | Germany |
| 66 | Gregorio Romero | 58 | Head | Metal Worker | California |
| 67 | Harriet A Romero | 44 | Wife | — | Oregon |
| 68 | Timothy Fitzpatrick | 47 | Head | — | Minnesota |
| 69 | Alice Fitzpatrick | 34 | Wife | — | California |
| 70 | George Lorton | 55 | Head | Labor Foreman | California |
| 71 | Esther Lorton | 27 | Wife | — | Illinois |
| 72 | Richard Lorton | 5 | Son | — | California |
| 73 | Howard Lorton | 3 | Son | — | California |
| 74 | Eugene Lorton | 35 | Brother | — | California |
| 75 | Ralph R Thomas THIS PERSON | 29 | Head | — | Illinois |
| 76 | Gertrude M Thomas | 34 | Wife | — | Illinois |
| 77 | Robert M Thomas | 13 | Son | — | California |
| 78 | Max Markert | 22 | Head | Draughtsman | Germany |
| 79 | Myrtha Markert | 22 | Wife | Servant | Germany |
| 80 | Bres Freeman | 37 | Head | Architect | Louisiana |
| 81 | Dorothy M Freeman | 37 | Wife | — | Maine |
| 82 | Bres Jr Freeman | 2 | Son | — | California |
| 83 | Malcolm Freeman | 1 | Son | — | California |
| 84 | Carl Schueller | 42 | Head | Owner | Illinois |
| 85 | Meta Schueller | 36 | Wife | — | Canada (Eng) |
| 86 | Rosa Mae Schueller | 12 | Daughter | — | California |
| 87 | Karl Schueller | 10 | Son | — | California |
| 88 | Katherine Roberts | 44 | Head | — | Illinois |
| 89 | Ross Roberts | 11 | Son | — | California |
| 90 | Virginia Roberts | 8 | Daughter | — | California |
| 91 | Jean Roberts | 8 | Daughter | — | California |
| 92 | Lowell Northrop | 41 | Head | Salesman | Nevada |
| 93 | Dawn E Northrop | 40 | Wife | — | California |
| 94 | Lowell E Jr Northrop | 12 | Son | — | California |
| 95 | John E Northrop | 10 | Son | — | California |
| 96 | Nancy Northrop | 8 | Daughter | — | California |
| 97 | Dawn Northrop | 5 | Daughter | — | California |
| 98 | James Delahunt | 62 | Servant | Groom | South Ireland |
| 99 | L Watkins | 53 | Servant | Groom | Ohio |
| 100 | George L King | 63 | Head | Photographer | Canada (Eng) |
Pedigree Summary
Ralph
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 1930 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)