WT
William Thompson — 1930 US Census Record
Model Tree available1930 United States Federal Census · Lassen, California
Our Model Tree links this William Thompson across the 1910, 1920 and 1930 US Censuses in Lassen, California (XGBoost, ~Confirmed), with identified parents Samuel & S — first a son (b.~1907), then head of a 5-person household.
Age 23
b. ~1907
Male
Son
Born: California
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Lassen, California |
| Surname | Thompson |
| Given Name | William H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Additional Details | |
| Occupation | Laborer |
| Industry | General Farm |
| Class of Worker | VVVV W |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Laborer |
| Township / Ward | Big Valley Township |
| Est. Birth Year | ~1907 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| S Thompson | Head | — | 56 | ~1874 |
| Roy Kelly | Other | — | 25 | ~1905 |
| Herbert Burnett | Other | — | 26 | ~1904 |
| Nellie Thompson | Other | — | 53 | ~1877 |
| William Thompson | Son | — | 23 | ~1907 |
Census Appearances
1910
Lassen, California
Son, age 3
Lassen, California · implied b. ~1907 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1920
Lassen, California
Son, age 13
Lassen, California · implied b. ~1907 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Lassen, California
Son, age 23
Lassen, California · implied b. ~1907 — 5 household members
| Surname | Thompson |
| Given Name | William H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Occupation | Laborer |
| Industry | General Farm |
| Class of Worker | VVVV W |
| Can Read/Write | Yes |
| 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 Thompson across 3 US Census years (1910, 1920 and 1930) in Lassen, California, using XGBoost record linkage. Identified parents: father Samuel Thompson (~0.92 confidence) and father S Thompson (~0.92 confidence) and mother Nellie Thompson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Samuel Thompson
b. ~1874
Source father
● Household
· direct · ~0.92
Father
S Thompson
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Nellie Thompson
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Thompson
Son · 1930 · age 23 · b. ~1907 · 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 — Lassen, California
Open full size
1930 US Federal Census — Lassen, California
Page Contents
45 people indexed on this census page (ia:1930:californiacensus00reel123:0013)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James J Summers | 57 | Head | Farmer | Missouri |
| 2 | Frances Summers | 52 | Wife-H | Teacher | California |
| 3 | Frances Summers | 90 | Mother-in-law | — | New Jersey |
| 4 | Nels Arneson | 72 | Head | — | Denmark |
| 5 | Milton E Babcock | 44 | Head | Farmer | California |
| 6 | Nora N Babcock | 33 | Wife-H | — | Oregon |
| 7 | Marjorie Babcock | 15 | Daughter | — | California |
| 8 | Earl L Babcock | 10 | Son | — | California |
| 9 | Lester A Babcock | 32 | Head | Farmer | California |
| 10 | Frances B Babcock | 21 | Wife-H | — | California |
| 11 | Robert F Babcock | 2 | Son | — | California |
| 12 | Arad Babcock | 28 | Brother | Farmer | California |
| 13 | Frank Burger | 62 | Boarder | Milker | Switzerland |
| 14 | Leland Gaylord | 22 | Head | Laborer | California |
| 15 | Virginia Gaylord | 17 | Wife-H | — | California |
| 16 | M. Leroy Brown | 45 | Head | Horse Dealer | Missouri |
| 17 | Rebekah K Brown | 47 | Wife-H | — | Michigan |
| 18 | Marjorie Brown | 19 | Daughter-H | — | California |
| 19 | S. James Thompson | 56 | Head | Farmer | California |
| 20 | Nellie P Thompson | 53 | Wife-H | — | California |
| 21 | William H Thompson THIS PERSON | 23 | Son | Laborer | California |
| 22 | Herbert Burnett | 26 | Boarder | Laborer | Colorado |
| 23 | Roy Kelly | 25 | Boarder | Laborer | Texas |
| 24 | Albert Runyon | 46 | Head | Manager | California |
| 25 | Ray N Ushum | 21 | Boarder | Laborer | Oregon |
| 26 | John Keller | 32 | Head | Manager | Switzerland |
| 27 | Daisy M Keller | 31 | Wife-H | — | Iowa |
| 28 | Charles J Gerhard | 38 | Head | Laborer | Florida |
| 29 | Mamie M Gerhard | 36 | Wife-H | — | Idaho |
| 30 | Charles G Gerhard | 14 | Son | — | Idaho |
| 31 | Ralph E Gerhard | 12 | Son | — | Idaho |
| 32 | Ida B Jones | 62 | Head | Housekeeper | Ohio |
| 33 | Homer C Heck | 51 | Head | Farmer | California |
| 34 | James Thayer | 57 | Boarder | Laborer | New York |
| 35 | Andrew Babcock | 72 | Head | Gardener | California |
| 36 | Amy E Babcock | 66 | Wife-H | — | Illinois |
| 37 | Thurlow R Babcock | 22 | Son | Farmer | California |
| 38 | Olive Babcock | 24 | Daughter-in-law | — | Nebraska |
| 39 | Mack Arnett | 50 | Head | Laborer | California |
| 40 | Dorothy Arnett | 40 | Wife-H | — | California |
| 41 | Wilson Arnett | 14 | Son | — | California |
| 42 | Nadine Arnett | 12 | Daughter | — | California |
| 43 | Mildred Arnett | 11 | Son | — | California |
| 44 | Woodrow Arnett | 6 | Son | — | California |
| 45 | Rosie Arnett | 4 | Daughter | — | California |
Related Census Records
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 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)