RC
Robert Carlson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Pierce-County, Washington
Our Model Tree links this Robert Carlson across the 1920, 1930 and 1940 US Censuses in Pierce-County, Washington (XGBoost, ~Confirmed), with identified parents Carl & Carolina — first a head (b.~1897), then head of a 6-person household.
Age 43
b. ~1897
Male
Head
Born: Minnesota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Pierce-County, Washington |
| Surname | Carlson |
| Given Name | Robert O |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Tacoma City |
| 1935 Residence (County) | Pierce |
| Additional Details | |
| Occupation | meter reader |
| Industry | City Light |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1800 |
| Highest Grade | H 2 |
| 1935 Residence | Same house |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Meter Reader |
| Township / Ward | Tacoma City |
| Est. Birth Year | ~1897 |
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 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Dora Carlson | Spouse | — | 40 | ~1900 |
| Robert Carlson | Head | — | 43 | ~1897 |
| Lorraine Carlson | Daughter | — | 9 | ~1931 |
| Ruth Carlson | Daughter | — | 11 | ~1929 |
| Louise Carlson | Daughter | — | 14 | ~1926 |
| Ernest Carlson | Son | — | 16 | ~1924 |
Census Appearances
1920
Pierce, Washington
Son, age 23
Pierce, Washington · implied b. ~1897 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Robert W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Fireman |
| Industry | Steam Engine |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Pierce, Washington
Head, age 33
Pierce, Washington · implied b. ~1897 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Robert O. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Age at First Marriage | 25 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Upholsterer |
| Industry | Furniture |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 5000 |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Pierce-County, Washington
Head, age 43
Pierce-County, Washington · implied b. ~1897 — 6 household members
| Surname | Carlson |
| Given Name | Robert O |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Tacoma City |
| 1935 Residence (County) | Pierce |
| Occupation | meter reader |
| Industry | City Light |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1800 |
| Highest Grade | H 2 |
| 1935 Residence | Same house |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Robert Carlson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Carl Carlson (~0.92 confidence) and mother Carolina Carlson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Carl Carlson
b. ~1865
Source father
● Household
· direct · ~0.92
Mother
Carolina Carlson
b. ~1869
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Carlson
Head · 1940 · age 43 · b. ~1897 · Washington
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Pierce-County, Washington
Open full size
1940 US Federal Census — Pierce-County, Washington
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04389-00254)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Wm A Hollenbeck | 35 | Head | Bank Teller | Iowa |
| 2 | Vera B Hollenbeck | 34 | Wife | — | Iowa |
| 3 | John Hagen | 60 | Head | Bricklayer | Norway |
| 4 | Rose S Hagen | 49 | Wife | — | Minnesota |
| 5 | Robert O Carlson THIS PERSON | 43 | Head | Meter Reader | Minnesota |
| 6 | Dora O Carlson | 40 | Wife | — | Washington |
| 7 | Ernest R Carlson | 16 | Son | — | Washington |
| 8 | Louise E Carlson | 14 | Daughter | — | Washington |
| 9 | Ruth E Carlson | 11 | Daughter | — | Washington |
| 10 | Lorraine S Carlson | 9 | Daughter | — | Washington |
| 11 | Andrew Opdahl | 35 | Head | Packer | Norway |
| 12 | Anna Opdahl | 29 | Wife | — | Washington |
| 13 | Corraine A Opdahl | 4 | Daughter | — | Washington |
| 14 | Donovan Hook | 26 | Head | Boom Work | Washington |
| 15 | Kathryn Hook | 29 | Wife | — | Washington |
| 16 | Bessie A Galbraith | 79 | Head | — | Eire |
| 17 | George A Roberts | 40 | Head | Candy Maker | Michigan |
| 18 | Hazel Roberts | 38 | Wife | — | Washington |
| 19 | Robert Roberts | 16 | Son | — | Washington |
| 20 | Richard Roberts | 4 | Son | — | Washington |
| 21 | Melvin O Tvetene | 41 | Head | Owner + Mgr Service Station | Minnesota |
| 22 | Agnes I Tvetene | 36 | Wife | — | Washington |
| 23 | Ernest M Tvetene | 14 | Son | — | Washington |
| 24 | Janice E Tvetene | 5 | Daughter | — | Washington |
| 25 | Watts O Tvetene | 69 | Uncle | — | Norway |
| 26 | Fred Carlson | 48 | Head | Upholsterer | Minnesota |
| 27 | Minnie Carlson | 44 | Wife | Helper | Washington |
| 28 | — | None | Neighbor | — | — |
| 29 | Francis Olson | 36 | Head | Principal Of High School | Alaska |
| 30 | Marion G Olson | 32 | Wife | — | Washington |
| 31 | Bruce Olson | 4 | Son | — | Washington |
| 32 | Clara B Reid | 42 | Head | Crane Operator | Michigan |
| 33 | Zella A Reid | 43 | Wife | Grade Teacher | Oklahoma |
| 34 | Andrew Reid | 73 | Father | — | Canada |
| 35 | Carl A Carlson | 74 | Head | — | Sweden |
| 36 | Gunnar R Carlson | 46 | Son | Clipper Man | Minnesota |
| 37 | Harry W Carlson | 38 | Son | Auto Mechanic | Washington |
| 38 | Herbert E Carlson | 37 | Son | Mixer | Washington |
| 39 | Ruth E Carlson | 33 | Daughter | Stenographer | Washington |
| 40 | Joseph F Martin | 35 | Head | Sawyer | Illinois |
Pedigree Summary
Robert
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 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)