CJ
Carl Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Carl Johnson across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Charles & Helma — first a head (b.~1896), then head of a 3-person household.
Age 44
b. ~1896
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Johnson |
| Given Name | Carl |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden city |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | carpenter |
| Industry | contracting |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 308 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Carpenter |
| Township / Ward | Malden City |
| Est. Birth Year | ~1896 |
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 Carl | Age | Birth yr |
|---|---|---|---|---|
| Florence Johnson | Daughter | — | 17 | ~1923 |
| Carl Johnson | Head | — | 44 | ~1896 |
| Ellen Johnson | Spouse | — | 43 | ~1897 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 25
Middlesex, Massachusetts · implied b. ~1895 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Carl S |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Stenographer |
| Industry | State |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Other, age 35
Middlesex, Massachusetts · implied b. ~1895 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Carl A. |
| Relationship to Head | Son-in-law |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 27 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Carpenter |
| Industry | Bldg Contractor |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Head, age 44
Middlesex-County, Massachusetts · implied b. ~1896 — 3 household members
| Surname | Johnson |
| Given Name | Carl |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden city |
| 1935 Residence (County) | Middlesex |
| Occupation | carpenter |
| Industry | contracting |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 308 |
| Highest Grade | No 8 |
| 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 Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Johnson (~0.92 confidence) and mother Helma Johnson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Johnson
b. ~1846
Source father
● Household
· direct · ~0.92
Mother
Helma Johnson
b. ~1874
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Carl Johnson
Head · 1940 · age 44 · b. ~1896 · Massachusetts
★ 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 — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01609-00425)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William T. Olson | 9 | Son | — | Massachusetts |
| 2 | Betty Ann Olson | 5 | Daughter | — | Massachusetts |
| 3 | Edith Rillette | 55 | Head | Housekeeper | Newfoundland |
| 4 | Stewart Rillette | 21 | Son | Helper | Massachusetts |
| 5 | Beulah Rillette | 19 | Daughter | Secretary | Massachusetts |
| 6 | Ethel Rillette | 17 | Daughter | — | Massachusetts |
| 7 | James Brown | 38 | Head | Salesman | Scotland |
| 8 | Josephine Brown | 38 | Wife | — | Canada-Eng |
| 9 | Marjorie Brown | 14 | Daughter | — | Massachusetts |
| 10 | Lillian Fisher | 12 | Daughter | — | Canada-Fr |
| 11 | Margaret Keeley | 66 | Head | — | Canada-Eng |
| 12 | Thelma Dowling | 41 | Daughter | — | Massachusetts |
| 13 | Henry Santoro | 46 | Head | Barber | Italy |
| 14 | Theresa Santoro | 38 | Wife | — | Massachusetts |
| 15 | Camille Santoro | 11 | Daughter | — | Massachusetts |
| 16 | Geraldine Santoro | 9 | Daughter | — | Massachusetts |
| 17 | Anthony Saccardo | 68 | Father in law | Laborer | Italy |
| 18 | Norma Saccardo | 16 | Sister in law | — | Massachusetts |
| 19 | Jeremiah Santoro | 50 | Head | Barber | Italy |
| 20 | Rose Santoro | 43 | Wife | — | Massachusetts |
| 21 | Christina Santoro | 14 | Daughter | — | Massachusetts |
| 22 | Charles Carbone | 33 | Head | Chauffeur | Massachusetts |
| 23 | Lena Carbone | 34 | Wife | — | Massachusetts |
| 24 | Dolores Carbone | 9 | Daughter | — | Massachusetts |
| 25 | Carl Johnson THIS PERSON | 44 | Head | Carpenter | Massachusetts |
| 26 | Ellen C. Johnson | 43 | Wife | Cook | Massachusetts |
| 27 | Florence S. Johnson | 17 | Daughter | — | Massachusetts |
| 28 | Anthony Alagero | 36 | Head | Utility Man | Louisiana |
| 29 | Laura Alagero | 36 | Wife | — | Massachusetts |
| 30 | Loretta Alagero | 13 | Daughter | — | Massachusetts |
| 31 | Anthony Jr. Alagero | 12 | Son | — | Massachusetts |
| 32 | Christine Alagero | 3 | Daughter | — | Massachusetts |
| 33 | Carl F. Hedberg | 73 | Head | Shoe Maker | Sweden |
| 34 | Gustave Anderson | 43 | Son in law | Machinist | Sweden |
| 35 | Hildegarde Anderson | 46 | Daughter | — | Massachusetts |
| 36 | Beatrice Anderson | 15 | Granddaughter | — | Massachusetts |
| 37 | Carl Anderson | 14 | Grandson | — | Massachusetts |
| 38 | Doris Anderson | 13 | Granddaughter | — | Massachusetts |
| 39 | Helen Anderson | 11 | Granddaughter | — | Massachusetts |
Pedigree Summary
Carl
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)