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 John & Hilma — first a son (b.~1917), then head of a 3-person household.
Age 23
b. ~1917
Male
Son
Born: Washington
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Pierce-County, Washington |
| Surname | Carlson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Tacoma City |
| 1935 Residence (County) | Pierce |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 56 |
| Highest Grade | C 4 |
| 1935 Residence | Same Place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Township / Ward | Tacoma City |
| Est. Birth Year | ~1917 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Carlson | Son | — | 23 | ~1917 |
| Einar Carlson | Head | — | 51 | ~1889 |
| Ida Carlson | Spouse | — | 40 | ~1900 |
Census Appearances
1920
Pierce, Washington
Son, age 2
Pierce, Washington · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Robert L. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Minnesota |
| Occupation | none |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
Pierce, Washington
Son, age 13
Pierce, Washington · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
Pierce-County, Washington
Son, age 23
Pierce-County, Washington · implied b. ~1917 — 3 household members
| Surname | Carlson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Tacoma City |
| 1935 Residence (County) | Pierce |
| Class of Worker | 0 |
| Hours Worked | 56 |
| Highest Grade | C 4 |
| 1935 Residence | Same Place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
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 John Carlson (~0.92 confidence) and mother Hilma Carlson (~0.92 confidence) and father Einar Carlson (~0.92 confidence) and father Einar Carlson (~0.92 confidence) and mother Mathilda Carlson (~0.92 confidence) and mother Ida Carlson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Carlson
b. ~1856
Source father
● Household
· direct · ~0.92
Mother
Hilma Carlson
b. ~1873
Source mother
● Household
· direct · ~0.92
Father
Einar Carlson
b. ~1889
Source father
● Household
· direct · ~0.92
Father
Einar Carlson
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Mathilda Carlson
b. ~1896
Source mother
● Household
· direct · ~0.92
Mother
Ida Carlson
b. ~1900
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Carlson
Son · 1940 · age 23 · b. ~1917 · 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-t0627-04388-00608)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Sarah M. Lake | 72 | Head | — | Newfoundland |
| 42 | Mrs. Wilson | 75 | Lodger | — | English Canada |
| 43 | Hugo S. Bjorklund | 49 | Head | Accountant | Washington |
| 44 | Ruth Bjorklund | 49 | Wife | — | Washington |
| 45 | Robert Bjorklund | 23 | Son | — | Washington |
| 46 | Richard Bjorklund | 21 | Son | — | Washington |
| 47 | Ruth Bjorklund | 14 | Daughter | — | Washington |
| 48 | Mae J. Kelley | 57 | Head | Clerk | Indiana |
| 49 | James Kelley | 27 | Son | Service Man | Minnesota |
| 50 | Gerald Kelley | 24 | Son | — | Minnesota |
| 51 | Doris Kelley | 21 | Daughter-in-law | Park Worker | Canada |
| 52 | Bruce Kelley | 0 | Grandson | — | Washington |
| 53 | Kirk F. Althow | 47 | Head | Printer | Washington |
| 54 | Gladys Althow | 31 | Wife | — | Washington |
| 55 | Kirk F. Jr. Althow | 20 | Son | — | Washington |
| 56 | Gertrude Althow | 2 | Daughter | — | Washington |
| 57 | Mervin Morrison | 66 | Head | — | Canada |
| 58 | Anna Lee B. Morrison | 49 | Wife | — | Washington |
| 59 | John M. Morrison | 12 | Son | — | Washington |
| 60 | Benjamin Nicholson | 49 | Head | Electrical Plater | Washington |
| 61 | Janette P. Nicholson | 36 | Wife | — | Connecticut |
| 62 | Marjorie Nicholson | 19 | Daughter | — | Washington |
| 63 | David Nicholson | 5 | Son | — | Washington |
| 64 | Carl A. Berg | 50 | Head | Real Estate Man | Sweden |
| 65 | Gertrude S. Berg | 40 | Wife | — | Montana |
| 66 | Robert Berg | 20 | Son | — | Washington |
| 67 | Donna Berg | 13 | Son | — | Washington |
| 68 | David Berg | 7 | Son | — | Washington |
| 69 | Carl W. Mueller | 30 | Head | Salesman | Indiana |
| 70 | Charlotte O. Mueller | 31 | Wife | — | Washington |
| 71 | James S. Walstrom | 11 | Son | — | Washington |
| 72 | Arthur Knight | 45 | Head | Manager Stock Room | England |
| 73 | Rae D. Knight | 31 | Wife | — | Washington |
| 74 | Rosean Knight | 10 | Daughter | — | Washington |
| 75 | Milo B. Palmer | 44 | Head | Inspector | Missouri |
| 76 | Alice S. Palmer | 35 | Wife | — | Washington |
| 77 | Mary Jane Palmer | 7 | Daughter | — | Washington |
| 78 | Einar A. Carlson | 51 | Head | Machinist | Sweden |
| 79 | Ida O. Carlson | 40 | Wife | — | Minnesota |
| 80 | Robert Carlson THIS PERSON | 23 | Son | — | Washington |
Pedigree Summary
Robert
Gen 1 · 6 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)