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Carl Carlson — 1930 US Census Record
Model Tree available1930 United States Federal Census · San Mateo, California
Our Model Tree links this Carl Carlson across the 1910, 1920 and 1930 US Censuses in San Mateo, California (XGBoost, ~Confirmed), with identified parents Karl & Hannah — first a head (b.~1900), then head of a 6-person household.
Age 30
b. ~1900
Male
Head
Born: Finland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | San Mateo, California |
| Surname | Carlson |
| Given Name | Carl J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Finland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1900 |
| Age at First Marriage | 25 |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Additional Details | |
| Occupation | Foreman |
| Industry | Dredger |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | R |
| Home Value / Rent | 30 |
| Veteran | No |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
| Occupation | Foreman |
| Township / Ward | Belmont City |
| Est. Birth Year | ~1900 |
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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Carl | Age | Birth yr |
|---|---|---|---|---|
| Virginia Carlson | Daughter | — | 2 | ~1928 |
| Viola Carlson | Daughter | — | ~1930 | |
| Carl Carlson | Head | — | 30 | ~1900 |
| Ruth Carlson | Other | — | 27 | ~1903 |
| Leland Carlson | Son | — | 1 | ~1929 |
| Ralph Carlson | Son | — | 3 | ~1927 |
Census Appearances
1910
Aitkin, Minnesota
Son, age 10
Aitkin, Minnesota · implied b. ~1900 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Karlson |
| Given Name | Carl Theodor Raffael |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Finland |
| Father's Birthplace | Finland Swedish |
| Mother's Birthplace | Finland Swedish |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Swedish |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
1920
Aitkin, Minnesota
Son, age 20
Aitkin, Minnesota · implied b. ~1900 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Carl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Finland |
| Year of Immigration | 1900 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | Farm Labour |
| Industry | Home Farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth Country | Finland |
| Year of Naturalization | 1908 |
| Birthplace (normalized) | finland |
1930
San Mateo, …
Head, age 30
San Mateo, California · implied b. ~1900 — 6 household members
| Surname | Carlson |
| Given Name | Carl J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Finland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1900 |
| Age at First Marriage | 25 |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | Foreman |
| Industry | Dredger |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | R |
| Home Value / Rent | 30 |
| Veteran | No |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
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 Carl Carlson across 3 US Census years (1910, 1920 and 1930) in 2 locations, using XGBoost record linkage. Identified parents: father Karl Carlson (~0.92 confidence) and mother Hannah Carlson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Karl Carlson
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Hannah Carlson
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Carl Carlson
Head · 1930 · age 30 · b. ~1900 · 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 — San Mateo, California
Open full size
1930 US Federal Census — San Mateo, California
Page Contents
50 people indexed on this census page (ia:1930:californiacensus00reel216:0770)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Gladys Fountain | 35 | Wife-H | — | Canada |
| 52 | Phyllis Fountain | 12 | Daughter | — | Canada |
| 53 | John Fountain | 10 | Son | — | Canada |
| 54 | Manda M May | 41 | Head | Housekeeper | Iowa |
| 55 | Marion May | 6 | Daughter | — | California |
| 56 | William H Mason | 79 | Head | Retired | Illinois |
| 57 | Fred Rogers | 41 | Son-in-law | Driver | Connecticut |
| 58 | Alma Rogers | 42 | Daughter | — | Illinois |
| 59 | Robert Rogers | 18 | G. Son | Laborer | California |
| 60 | Mary Rogers | 17 | G. Daughter | — | California |
| 61 | Eugenia Buckinger | 8 | G. Daughter | — | California |
| 62 | James Kelley | 40 | Head | Restaurant | Massachusetts |
| 63 | Bernard Schobelgert | 28 | Head | Plasterer | Illinois |
| 64 | Marie Schobelgert | 23 | Wife-H | — | Texas |
| 65 | Bernard Jr Schobelgert | 5 | Son | — | California |
| 66 | Marianne Schobelgert | 3 | Daughter | — | California |
| 67 | J Oscar Smith | 49 | Uncle | — | Mississippi |
| 68 | Hardy Hannibal | 42 | Head | Milkman | Nebraska |
| 69 | Nora Hannibal | 42 | Wife-H | Stationmaster | Nebraska |
| 70 | Gilbert Hannibal | 20 | Son | — | Nevada |
| 71 | Frances Hannibal | 19 | Daughter | — | Nevada |
| 72 | Edward Hannibal | 18 | Son | — | Nevada |
| 73 | Helen Hannibal | 15 | Daughter | — | California |
| 74 | Margaret Hannibal | 13 | Daughter | — | Nebraska |
| 75 | Carl J Carlson THIS PERSON | 30 | Head | Foreman | Finland |
| 76 | Ruth Carlson | 27 | Wife-H | — | Minnesota |
| 77 | Ralph Carlson | 3 | Son | — | California |
| 78 | Virginia Carlson | 2 | Daughter | — | California |
| 79 | Leland Carlson | 1 | Son | — | California |
| 80 | Viola Carlson | 0 | Daughter | — | California |
| 81 | Aleck Overland | 46 | Head | Electrician | Minnesota |
| 82 | Augusta Overland | 39 | Wife-H | — | Nebraska |
| 83 | Benhar Bromer | 26 | Head | Painter | Wisconsin |
| 84 | Norma Bromer | 26 | Wife-H | — | Wisconsin |
| 85 | Raymond Kelly | 30 | Head | Clerk | California |
| 86 | Inez Kelly | 29 | Wife-H | — | California |
| 87 | Raymond Jr Kelly | 9 | Son | — | California |
| 88 | Marylou Kelly | 6 | Daughter | — | California |
| 89 | Frank A Johnson | 32 | Head | Garage Man | California |
| 90 | Cornelia Johnson | 32 | Wife-H | — | New Jersey |
| 91 | Cecil W Jones | 12 | Step-son | — | California |
| 92 | Carl Stangue | 54 | Head | Laborer | Poland |
| 93 | Marie Stangue | 44 | Wife-H | — | Poland |
| 94 | John Stangue | 24 | Son | Electrician | California |
| 95 | Benny Russell | 69 | Head | Painter | California |
| 96 | Emma Russell | 50 | Wife-H | — | California |
| 97 | John Rasch | 60 | Head | Baker | Switzerland |
| 98 | Phoebe Rasch | 59 | Wife-H | — | California |
| 99 | Mary Ahunty | 60 | Head | — | California |
| 100 | Frankie Ahunty | 39 | Son | Attendant | California |
Pedigree Summary
Carl
Gen 1 · 2 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)