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Carl Carlson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Carl Carlson across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Albert & Albert — first a son (b.~1905), then head of a 5-person household.
Age 35
b. ~1905
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Carlson |
| Given Name | Carl E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville city |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Bartender |
| Industry | Saloon |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1000 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Bartender |
| Township / Ward | Somerville City |
| Est. Birth Year | ~1905 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Carl | Age | Birth yr |
|---|---|---|---|---|
| Annette Carlson | Daughter | — | 30 | ~1910 |
| Marie Carlson | Head | — | 64 | ~1876 |
| Carl Carlson | Son | — | 35 | ~1905 |
| Robert Carlson | Son | — | 23 | ~1917 |
| Albert Carlson | Son | — | 28 | ~1912 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 14
Middlesex, Massachusetts · implied b. ~1906 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Carl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Norway |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 25
Middlesex, Massachusetts · implied b. ~1905 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlson |
| Given Name | Carl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Norway |
| Occupation | Clerk |
| Industry | Electric Light |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 35
Middlesex-County, Massachusetts · implied b. ~1905 — 5 household members
| Surname | Carlson |
| Given Name | Carl E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville city |
| 1935 Residence (County) | Middlesex |
| Occupation | Bartender |
| Industry | Saloon |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1000 |
| Highest Grade | H-2 |
| 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 Carl Carlson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Albert Carlson (~0.92 confidence) and father Albert Carlson (~0.92 confidence) and mother Marie Carlson (~0.92 confidence) and mother Laura Carlson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Albert Carlson
b. ~1874
Source father
● Household
· direct · ~0.92
Father
Albert Carlson
b. ~1874
Source father
● Household
· direct · ~0.92
Mother
Marie Carlson
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Laura Carlson
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Carl Carlson
Son · 1940 · age 35 · b. ~1905 · Massachusetts
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Sibling
Robert Carlson
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Annette Carlson
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Albert 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 — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01705-00276)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ruth Wilma Reardon | 39 | Wife | Cashier | Massachusetts |
| 2 | Malvina Tremblay | 72 | Head | Landlady | Massachusetts |
| 3 | Juliet Salisbury | 29 | Lodger | Stitcher | Massachusetts |
| 4 | David Broussard | 60 | Lodger | — | Massachusetts |
| 5 | George Murphy | 30 | Lodger | Painter | Massachusetts |
| 6 | Frank Murphy | 32 | Lodger | Painter | Massachusetts |
| 7 | Minnie Wheeler | 50 | Lodger | — | Massachusetts |
| 8 | John Robertson | 60 | Lodger | Laborer | Massachusetts |
| 9 | — | None | — | — | — |
| 10 | — | None | — | — | — |
| 11 | Louise Mcmullin | 70 | Head | Landlady | Massachusetts |
| 12 | Frank Budd | 64 | Lodger | Driver | Massachusetts |
| 13 | George Mcmullin | 54 | Lodger | Checker | Massachusetts |
| 14 | Hugh Dempsey | 57 | Lodger | Horse Shoer | Massachusetts |
| 15 | Marie Carlson | 64 | Head | Landlady | Massachusetts |
| 16 | Carl E. Carlson THIS PERSON | 35 | Son | Bartender | Massachusetts |
| 17 | Annette Carlson | 30 | Daughter | Stenographer | Massachusetts |
| 18 | Albert Carlson | 28 | Son | Shipper | Massachusetts |
| 19 | Robert Carlson | 23 | Son | Machinist Helper | Massachusetts |
| 20 | Herbert Carlson | 26 | Head | Machinist | Massachusetts |
| 21 | Louise Carlson | 23 | Wife | — | Massachusetts |
| 22 | Roberta Carlson | 1 | Daughter | — | Massachusetts |
| 23 | Infant Carlson | 0 | Son | — | Massachusetts |
| 24 | George Stephenson | 52 | Head | Machinist | Massachusetts |
| 25 | Estelle Stephenson | 51 | Wife | — | Massachusetts |
| 26 | Mildred Stephenson | 22 | Daughter | Counter Girl | Massachusetts |
| 27 | Ethel Stephenson | 19 | Daughter | Counter Girl | Massachusetts |
| 28 | Anton Hendrickson | 69 | Head | Machinist | Norway |
| 29 | Augustus Quick | 69 | Head | Salesman | Massachusetts |
| 30 | Estella Quick | 64 | Wife | — | Canada |
| 31 | Cesidio Liguori | 40 | Head | — | Italy |
| 32 | Armand Liguori | 13 | Son | — | Massachusetts |
| 33 | Vincent Liguori | 12 | Son | — | Massachusetts |
| 34 | Ferdinand Liguori | 9 | Son | — | Massachusetts |
| 35 | Mary Liguori | 5 | Daughter | — | Massachusetts |
| 36 | Hubert Dunk | 33 | Head | Manager | Massachusetts |
| 37 | Rita Dunk | 32 | Wife | — | Massachusetts |
| 38 | Helen Ricker | 53 | Head | Housewife | Massachusetts |
| 39 | Marion G. Ricker | 24 | Daughter | Secretary | Massachusetts |
| 40 | Beryl Ricker | 59 | Daughter | — | Massachusetts |
Pedigree Summary
Carl + 3 siblings
Gen 1 · 4 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)