HJ
Helen Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Helen Johnson across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Anders & Erick — first a spouse (b.~1912), then head of a 3-person household.
Age 28
b. ~1912
Female
Spouse
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Johnson |
| Given Name | Helen |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Industry | 0 |
| Highest Grade | H-1 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Somerville City |
| Est. Birth Year | ~1912 |
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 Helen | Age | Birth yr |
|---|---|---|---|---|
| Richard Johnson | Son | — | 2 | ~1938 |
| Herbert Johnson | Son | — | 9 | ~1931 |
| Helen Johnson | Spouse | — | 28 | ~1912 |
Census Appearances
1920
Middlesex, Massachusetts
Daughter, age 7
Middlesex, Massachusetts · implied b. ~1913 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Daughter, age 18
Middlesex, Massachusetts · implied b. ~1912 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Spouse, age 28
Middlesex-County, Massachusetts · implied b. ~1912 — 3 household members
| Surname | Johnson |
| Given Name | Helen |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville City |
| 1935 Residence (County) | Middlesex |
| Industry | 0 |
| Highest Grade | H-1 |
| 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 Helen Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Anders Johnson (~0.92 confidence) and father Erick Johnson (~0.92 confidence) and mother Agnes Johnson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Anders Johnson
b. ~1879
Source father
● Household
· direct · ~0.92
Father
Erick Johnson
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Agnes Johnson
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Helen Johnson
Spouse · 1940 · age 28 · b. ~1912 · 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
40 people indexed on this census page (nara:1940:m-t0627-01702-00028)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Helen Johnson THIS PERSON | 28 | Wife | — | Massachusetts |
| 42 | Herbert Johnson | 9 | Son | — | Massachusetts |
| 43 | Richard Johnson | 2 | Son | — | Massachusetts |
| 44 | Nicola Caruso | 36 | Head | Assembling | Italy |
| 45 | Mary Caruso | 31 | Wife | Chocolate Dipper | Massachusetts |
| 46 | Louis Caruso | 11 | Son | — | Massachusetts |
| 47 | Irene Caruso | 5 | Daughter | — | Massachusetts |
| 48 | Mark Bernardi | 41 | Head | Laborer | Italy |
| 49 | Jennie Bernardi | 40 | Wife | — | Italy |
| 50 | Joseph Silva | 59 | Head | Cabinet Maker | Portugal |
| 51 | Mary Silva | 55 | Wife | — | Portugal |
| 52 | James Hurley | 39 | Head | Longshoreman | Newfoundland |
| 53 | Mary Hurley | 36 | Wife | — | Massachusetts |
| 54 | John Hurley | 11 | Son | — | Massachusetts |
| 55 | Mary Hurley | 9 | Daughter | — | Massachusetts |
| 56 | Margaret Hurley | 7 | Daughter | — | Massachusetts |
| 57 | Dorothy Hurley | 4 | Daughter | — | Massachusetts |
| 58 | Cassar Comparitti | 32 | Head | Truck Driver | Massachusetts |
| 59 | Adeline Comparitti | 34 | Wife | — | Massachusetts |
| 60 | George Comparitti | 10 | Son | — | Massachusetts |
| 61 | Gina Comparitti | 8 | Daughter | — | Massachusetts |
| 62 | Tito Comparitti | 28 | Brother | Beverage Case Man | Massachusetts |
| 63 | Joseph Donati | 31 | Brother-in-law | Truck Driver | Massachusetts |
| 64 | Carmen Donati | 29 | Sister-in-law | — | Italy |
| 65 | Teresa Donati | 8 | Niece | — | Massachusetts |
| 66 | Morris Wineburg | 32 | Boarder | Trucking | Massachusetts |
| 67 | Frank Del Vecchio | 52 | Head | Building Contractor | Italy |
| 68 | Enes Del Vecchio | 39 | Wife | — | Italy |
| 69 | Louis Del Vecchio | 6 | Son | — | Massachusetts |
| 70 | Victor Del Vecchio | 19 | Step-son | Laborer | Massachusetts |
| 71 | Savarrio Daradezzi | 18 | Step-son | Salesman | Massachusetts |
| 72 | Doris Daradezzi | 17 | Step-daughter | — | Massachusetts |
| 73 | Olga Daradezzi | 12 | Step-daughter | — | Massachusetts |
| 74 | Julio Comparitti | 58 | Head | Chromium Plater | Italy |
| 75 | Gengiene Comparitti | 55 | Wife | Cleaner | Italy |
| 76 | Olga Comparitti | 20 | Daughter | New Worker | Massachusetts |
| 77 | Jennie Manley | 45 | Head | — | Massachusetts |
| 78 | Ruth Manley | 24 | Daughter | Waitress | Massachusetts |
| 79 | Lorenzo Danielli | 44 | Head | Sausage Maker | Italy |
| 80 | Antoinette Danielli | 42 | Wife | — | Italy |
Pedigree Summary
Helen
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)