JC
John Carlson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mason-County, Washington
Our Model Tree links this John Carlson across the 1910, 1920, 1930 and 1940 US Censuses in Mason-County, Washington (XGBoost, ~Confirmed) — first a head (b.~1879), then head of a 3-person household.
Age 61
b. ~1879
Male
Head
Born: Finland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Mason-County, Washington |
| Surname | Carlson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Finland |
| 1935 Residence (City) | Shelton City |
| 1935 Residence (County) | Mason |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Laborer |
| Industry | Retail Lumber Company |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 988 |
| Highest Grade | H 8 |
| 1935 Residence | Same place |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
| Occupation | Laborer |
| Township / Ward | Shelton City |
| Est. Birth Year | ~1879 |
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 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Carlson | Head | — | 61 | ~1879 |
| E Carlson | Son | — | 15 | ~1925 |
| Ida Carlson | Spouse | — | 55 | ~1885 |
Census Appearances
1910
Mason, Washington
Other, age 32
Mason, Washington · implied b. ~1878 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | John |
| Relationship to Head | Partner |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Finland |
| Children Living | 1896 |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | Knotter |
| Industry | Logging Camp |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
1920
Mason, Washington
Head, age 43
Mason, Washington · implied b. ~1877 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Finland |
| Year of Immigration | 1902 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | Laborer |
| Industry | Woods |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth Country | Finland |
| Year of Naturalization | 1912 |
| Birthplace (normalized) | finland |
1930
Mason, Washington
Head, age 51
Mason, Washington · implied b. ~1879 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Finland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1899 |
| Age at First Marriage | 24 |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | Mill worker |
| Industry | Saw mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | R |
| Home Value / Rent | 15 |
| Veteran | No |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
1940
Mason-County, Washington
Head, age 61
Mason-County, Washington · implied b. ~1879 — 3 household members
| Surname | Carlson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Finland |
| 1935 Residence (City) | Shelton City |
| 1935 Residence (County) | Mason |
| Naturalization Status | Naturalized |
| Occupation | Laborer |
| Industry | Retail Lumber Company |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 988 |
| Highest Grade | H 8 |
| 1935 Residence | Same place |
| 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 John Carlson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Carlson
Head · 1940 · age 61 · b. ~1879 · Washington
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Mason-County, Washington
Open full size
1940 US Federal Census — Mason-County, Washington
Page Contents
34 people indexed on this census page (nara:1940:m-t0627-04352-00769)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | June A. Jordan | 14 | Daughter | — | Washington |
| 42 | Ben W. Lopez | 40 | Head | Electrician | Idaho |
| 43 | Eva S. Lopez | 39 | Wife | Saleswoman | Minnesota |
| 44 | Ben W. Jr. Lopez | 14 | Son | — | California |
| 45 | Joan M. Lopez | 11 | Daughter | — | Washington |
| 46 | Horace W. Skelley | 68 | Head | Machinist Helper | England |
| 47 | Ellen M. Skelley | 66 | Wife | — | England |
| 49 | Robert R. Phillips | 64 | Head | R.R. Repairer | Kansas |
| 50 | Rose R. Phillips | 73 | Wife | — | Indiana |
| 52 | Clyde W. Jones | 67 | Head | Farmer | Michigan |
| 53 | Lila M. Jones | 52 | Wife | — | Washington |
| 55 | Frank E. Willard | 30 | Head | School Teacher | Washington |
| 56 | Ruth M. Willard | 28 | Wife | School Teacher | Washington |
| 58 | Arnent M. Osterberg | 51 | Head | — | Finland |
| 59 | Herbert M. Dammasch | 26 | Son-in-law | Stacker | Washington |
| 60 | Inez M. Dammasch | 25 | Daughter | — | Washington |
| 61 | Karine S. Dammasch | 2 | Granddaughter | — | Washington |
| 62 | Mildred J. Dammasch | 1 | Granddaughter | — | Washington |
| 63 | Lucille V. Franson | 12 | Daughter | — | Washington |
| 64 | John Carlson THIS PERSON | 61 | Head | Laborer | Finland |
| 65 | Ida S. Carlson | 55 | Wife | — | Finland |
| 66 | E. Elmer Carlson | 15 | Son | Paper Boy | Washington |
| 67 | Marie E. Provost | 79 | Head | — | Finland |
| 68 | Theodore J. Carlson | 35 | Head | Headsman | Washington |
| 69 | Helen F. Carlson | 29 | Wife | — | Indiana |
| 70 | Kenneth R. Carlson | 10 | Son | — | Washington |
| 71 | Eleanor M. Carlson | 8 | Daughter | — | Washington |
| 72 | W. Harvey Robbins | 22 | Head | Electrician Helper | Canada-English |
| 73 | Alice M. Robbins | 18 | Wife | — | Oregon |
| 74 | Lawrence P. Bernert | 23 | Head | Fuelman | Washington |
| 76 | Jack L. Farr | 48 | Head | Fuelman | New York |
| 77 | Carry Farr | 40 | Wife | — | New York |
| 78 | Robert L. Farr | 17 | Son | — | North Dakota |
| 80 | Carry K. Mcdowell | 77 | Head | — | Iowa |
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)