OC
Oscar Carlson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Oscar Carlson across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Oscar & Carl — first a son (b.~1914), then head of a 4-person household.
Age 26
b. ~1914
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Carlson |
| Given Name | Oscar V. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston city |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Pressman |
| Industry | Rubber Mfg. |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 900 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Pressman |
| Township / Ward | Boston City |
| Est. Birth Year | ~1914 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Oscar | Age | Birth yr |
|---|---|---|---|---|
| Carl Carlson | Son | — | 28 | ~1912 |
| Ansgar Sommerfelt | Other | — | 36 | ~1904 |
| Carl Carlson | Head | — | 60 | ~1880 |
| Oscar Carlson | Son | — | 26 | ~1914 |
Census Appearances
1920
Norfolk, Massachusetts
Son, age 6
Norfolk, Massachusetts · implied b. ~1914 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Oscar |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Suffolk, Massachusetts
Son, age 16
Suffolk, Massachusetts · implied b. ~1914 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Oscar |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Canada French |
| Occupation | Helper |
| Industry | Fish market |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 26
Suffolk-County, Massachusetts · implied b. ~1914 — 4 household members
| Surname | Carlson |
| Given Name | Oscar V. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston city |
| 1935 Residence (County) | Suffolk |
| Occupation | Pressman |
| Industry | Rubber Mfg. |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 900 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 Oscar Carlson across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father Oscar Carlson (~0.92 confidence) and father Carl Carlson (~0.92 confidence) and mother Mary Carlson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Oscar Carlson
b. ~1874
Source father
● Household
· direct · ~0.92
Father
Carl Carlson
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Mary Carlson
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Oscar Carlson
Son · 1940 · age 26 · b. ~1914 · Massachusetts
★ You are viewing this record
Sibling
Carl Carlson
Sibling · 1940 · age 28
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
1940 US Federal Census — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01657-00026)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anthony Moschella | 15 | son | — | Massachusetts |
| 2 | Michael Moschella | 13 | son | — | Massachusetts |
| 3 | Error. Misinformed. | None | — | — | — |
| 4 | John P. Bowen | 52 | Head | Foreman | Massachusetts |
| 5 | Annie E. Bowen | 51 | Wife | — | Massachusetts |
| 6 | John E. Bowen | 14 | son | — | Massachusetts |
| 7 | Edmund B. Bowen | 10 | son | — | Massachusetts |
| 8 | Nathaniel White | 54 | Head | Store Keeper | Nova Scotia |
| 9 | Josephine White | 43 | Wife | — | Massachusetts |
| 10 | Lorraine White | 12 | daughter | — | Massachusetts |
| 11 | Natalie White | 10 | daughter | — | Massachusetts |
| 12 | Mary T. Foley | 65 | Head | — | Irish Free State |
| 13 | Edward D. Foley | 31 | son | Building | Massachusetts |
| 14 | Arthur W. Reagan | 22 | Nephew | Salesman | Massachusetts |
| 15 | Andrew Chisholm | 56 | Head | Mechanic | Canada English |
| 16 | Annie E. Chisholm | 49 | Wife | — | Canada English |
| 17 | Virginia Chisholm | 20 | daughter | Operator | Massachusetts |
| 18 | John T. White | 29 | Head | Book Keeper | Newfoundland |
| 19 | Ellen W. White | 30 | Wife | — | Massachusetts |
| 20 | John Jr. White | 5 | son | — | Massachusetts |
| 21 | Paul White | 3 | son | — | Massachusetts |
| 22 | Pellegrino Vega | 52 | Head | Laborer | Massachusetts |
| 23 | Emilia Vega | 49 | Wife | — | Delaware |
| 24 | Clara Vega | 26 | daughter | Operator | Italy |
| 25 | Domenick Vega | 24 | son | Shipper | Italy |
| 26 | Amadeo Vega | 21 | son | Barber | Italy |
| 27 | Rose Vega | 18 | daughter | Stenographer | Italy |
| 28 | Olga Vega | 16 | daughter | — | Italy |
| 29 | Thomas J. Piscopo | 31 | Head | Salesman | Massachusetts |
| 30 | Alice S. Piscopo | 30 | Wife | — | Massachusetts |
| 31 | Diana Piscopo | 5 | daughter | — | Massachusetts |
| 32 | Gail Piscopo | 3 | daughter | — | Massachusetts |
| 33 | Carl S. Carlson | 60 | Head | Pile Driver | Finland |
| 34 | Carl A. Carlson | 28 | son | Foreman | Massachusetts |
| 35 | Oscar V. Carlson THIS PERSON | 26 | son | Pressman | Massachusetts |
| 36 | Ansgar W. Sommerfelt | 36 | Brother law | House Man | Norway |
| 37 | John J. Hagan | 38 | Head | Fire Fighter | Massachusetts |
| 38 | Agnes Hagan | 30 | Wife | — | Massachusetts |
| 39 | Walter Hagan | 7 | son | — | Massachusetts |
| 40 | John J. Jr. Hagan | 2 | son | — | Massachusetts |
Pedigree Summary
Oscar + 1 sibling
Gen 1 · 3 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)