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William Carlson — 1930 US Census Record
Model Tree available1930 United States Federal Census · San Bernardino, California
Our Model Tree links this William Carlson across the 1920, 1930 and 1940 US Censuses in San Bernardino, California (XGBoost, ~Confirmed), with identified parents A & Albin — first a son (b.~1920), then head of a 5-person household.
Age 10
b. ~1920
Male
Son
Born: California
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | San Bernardino, California |
| Surname | Carlson |
| Given Name | William A |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Sweden |
| Mother's Birthplace | California |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | San Bernardino City |
| Est. Birth Year | ~1920 |
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 |
|---|---|---|---|---|
| Albin Carlson | Head | — | 44 | ~1886 |
| William Carlson | Son | — | 10 | ~1920 |
| Roy Carlson | Son | — | 16 | ~1914 |
| Bertha Carlson | Other | — | 34 | ~1896 |
| Eugenia Carlson | Daughter | — | 13 | ~1917 |
Census Appearances
1920
San Bernardino, …
Son, age
San Bernardino, California · implied b. ~1920 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | William A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Sweden |
| Mother's Birthplace | California |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
San Bernardino, …
Son, age 10
San Bernardino, California · implied b. ~1920 — 5 household members
| Surname | Carlson |
| Given Name | William A |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Sweden |
| Mother's Birthplace | California |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Bernardino-County, California
Son, age 20
San-Bernardino-County, California · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlsen |
| Given Name | William H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Bernardino City |
| Occupation | Store Clerk |
| Industry | Grocery Store |
| Class of Worker | NP |
| Hours Worked | 40 |
| Income (1939) | 298 |
| Highest Grade | Hs 2 |
| 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 Carlson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father A Carlson (~0.92 confidence) and father Albin Carlson (~0.92 confidence) and mother Anna Elliott (~0.92 confidence) and mother Bertha Carlsen (~0.92 confidence) and mother Bertha Carlson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
A Carlson
b. ~1887
Source father
● Household
· direct · ~0.92
Father
Albin Carlson
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Anna Elliott
b. ~1896
Source mother
● Household
· direct · ~0.92
Mother
Bertha Carlsen
b. ~1895
Source mother
● Household
· direct · ~0.92
Mother
Bertha Carlson
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Carlson
Son · 1930 · age 10 · b. ~1920 · California
★ You are viewing this record
Sibling
Roy Carlson
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eugenia Carlson
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — San Bernardino, California
Open full size
1930 US Federal Census — San Bernardino, California
Page Contents
50 people indexed on this census page (ia:1930:californiacensus00reel189:0772)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Luella A Palmer | 45 | wife-H | None | Kansas |
| 52 | William M Palmer | 25 | son | Laborer | California |
| 53 | Ray A Palmer | 24 | son | Truck Driver | California |
| 54 | Pearl A Ford | 22 | daughter | None | California |
| 55 | William L Ford | 27 | son in law | Machinist | Arkansas |
| 56 | Clarence A Robey | 34 | Head | Repair Meters | Iowa |
| 57 | Pearl Robey | 28 | wife-H | None | Illinois |
| 58 | Allan L Robey | 8 | son | None | South Dakota |
| 59 | C Vernon Robey | 5 | son | None | South Dakota |
| 60 | Mary B Robey | 3 | daughter | None | South Dakota |
| 61 | Albin Carlson | 44 | Head | Store Keeper | Sweden |
| 62 | Bertha Carlson | 34 | wife-H | Clerk | California |
| 63 | Roy G Carlson | 16 | son | None | California |
| 64 | Eugenia O Carlson | 13 | daughter | None | California |
| 65 | William A Carlson THIS PERSON | 10 | son | None | California |
| 66 | Eugene S Fogg | 62 | Head | Carpenter | Vermont |
| 67 | Ada H Fogg | 52 | wife-H | None | Vermont |
| 68 | Carl H Fogg | 21 | son | Machinist | Vermont |
| 69 | Lee Johnson | 34 | Head | Salesman | Canada English |
| 70 | Florence M Johnson | 32 | wife-H | None | California |
| 71 | Clyde E Johnson | 9 | son | None | California |
| 72 | Lela R Johnson | 2 | daughter | None | California |
| 73 | Leroy E Johnson | 0 | son | None | California |
| 74 | Lawrence E Frost | 30 | Head | Miller | Illinois |
| 75 | Dorothy B Frost | 29 | wife-H | None | California |
| 76 | Virginia M Frost | 7 | daughter | None | California |
| 77 | Charlotte J Frost | 3 | daughter | None | California |
| 78 | Lawrence L Harlow | 48 | Head | Helper Miller | Illinois |
| 79 | Bertha A Harlow | 46 | wife-H | None | Illinois |
| 80 | Frank L Harlow | 24 | son | Laborer | Illinois |
| 81 | Chester L Harlow | 22 | son | Driver | California |
| 82 | Melvin L Harlow | 18 | son | None | California |
| 83 | Donald B Harlow | 8 | son | None | California |
| 84 | Jennie A De Crastos | 78 | mother in law | None | New York |
| 85 | Lee Dye | 59 | Head | Carpenter | Missouri |
| 86 | Alice Belle Dye | 43 | wife-H | None | Missouri |
| 87 | George K Sherlock | 63 | Lodger | Canvass Maker | New Zealand |
| 88 | Leona F Wood | 48 | Head | None | Ohio |
| 89 | Nathalie Wood | 25 | daughter | Press Assistant | Illinois |
| 90 | Ennis R Wixon | 37 | Head | Machinist | California |
| 91 | Olive S Wixon | 33 | wife-H | Waitress | Michigan |
| 92 | Esther G Wixon | 14 | daughter | None | California |
| 93 | Gerald E Wixon | 11 | son | None | California |
| 94 | Leah L Wixon | 9 | daughter | None | California |
| 95 | Phyllis S Wixon | 5 | daughter | None | California |
| 96 | Richard S Wixon | 3 | son | None | California |
| 97 | Neal B James | 34 | Head | Boiler Maker | Arkansas |
| 98 | Ida M James | 34 | wife-H | None | Kansas |
| 99 | Mildred G James | 11 | daughter | None | Colorado |
| 100 | Byron B James | 9 | son | None | New Mexico |
Pedigree Summary
William + 2 siblings
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 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)