HC
Helen Campbell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Helen Campbell across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 9-person household.
Age 18
b. ~1922
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Campbell |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Switchboard Operator |
| Industry | Hospital |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 20 |
| Highest Grade | H 3 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Switchboard Operator |
| Township / Ward | Boston City |
| Est. Birth Year | ~1922 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Norma Campbell | Daughter | — | 14 | ~1926 |
| Alice Campbell | Daughter | — | 10 | ~1930 |
| Helen Campbell | Daughter | — | 18 | ~1922 |
| Cora Campbell | Head | — | 45 | ~1895 |
| Warren Campbell | Son | — | 3 | ~1937 |
| Paul Campbell | Son | — | 15 | ~1925 |
| Roland Campbell | Son | — | 23 | ~1917 |
| Edwin Campbell | Son | — | ~1940 | |
| Le Campbell | Son | — | 5 | ~1935 |
Census Appearances
1930
Suffolk, Massachusetts
Daughter, age 8
Suffolk, Massachusetts · implied b. ~1922 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Canada English |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Daughter, age 18
Suffolk-County, Massachusetts · implied b. ~1922 — 9 household members
| Surname | Campbell |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Occupation | Switchboard Operator |
| Industry | Hospital |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 20 |
| Highest Grade | H 3 |
| 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 Campbell across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Helen Campbell
Daughter · 1940 · age 18 · b. ~1922 · Massachusetts
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Sibling
Roland Campbell
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Campbell
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Warren Campbell
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edwin Campbell
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Norma Campbell
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Campbell
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Le Campbell
Sibling · 1940 · age 5
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-t0627-01669-00154)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Barbara White | 4 | Daughter | — | Massachusetts |
| 42 | Peter J Nolan | 43 | Head | Stock Clerk | Massachusetts |
| 43 | Margaret Nolan | 21 | Wife | Housewife | Massachusetts |
| 44 | Peter Nolan | 15 | Son | — | Massachusetts |
| 45 | Helen Nolan | 10 | Daughter | — | Massachusetts |
| 46 | Mildred W Carroll | 41 | Head | Housewife | Canada English |
| 47 | Norman Carroll | 19 | Son | Stock Boy | Canada English |
| 48 | Lillian Carroll | 17 | Daughter | New Worker | Canada English |
| 49 | Barbara Mcclellan | 10 | Daughter | — | Massachusetts |
| 50 | Janice Mcclellan | 7 | Daughter | — | Massachusetts |
| 51 | Elizabeth Mcclellan | 5 | Daughter | — | Massachusetts |
| 52 | Joseph Matherly | 45 | Head | Restaurant Man | Canada French |
| 53 | Alice Matherly | 51 | Wife | Housewife | Massachusetts |
| 54 | Thaddeus Shomkowski | 27 | Head | — | Connecticut |
| 55 | Olga Shomkowski | 27 | Wife | Bookkeeper | Massachusetts |
| 56 | Nicholas Carrazza | 37 | Head | Shoe Repairer | Italy |
| 57 | Theresa Carrazza | 37 | Wife | Housewife | Italy |
| 58 | Pauline Carrazza | 16 | Daughter | — | Massachusetts |
| 59 | Frank Carrazza | 14 | Son | — | Massachusetts |
| 60 | Mary R Carrazza | 13 | Daughter | — | Massachusetts |
| 61 | Jean Carrazza | 10 | Daughter | — | Massachusetts |
| 62 | Nicholas Carrazza | 7 | Son | — | Massachusetts |
| 63 | Sandra Carrazza | 1 | Daughter | — | Massachusetts |
| 64 | Raymond Bennett | 27 | Head | Washer | Massachusetts |
| 65 | Emma Bennett | 22 | Wife | General Work | Massachusetts |
| 66 | Nancy E H Silvey | 63 | Head | Weaver | Scotland |
| 67 | Thomas Silvey | 22 | Son | Cook'S Helper | Scotland |
| 68 | Robert Silvey | 18 | Son | Buss Boy | Scotland |
| 69 | Cora H Campbell | 45 | Head | Housewife | English Canada |
| 70 | Roland Campbell | 23 | Son | Operator | Massachusetts |
| 71 | Helen Campbell THIS PERSON | 18 | Daughter | Switchboard Operator | Massachusetts |
| 72 | Paul Campbell | 15 | Son | — | Massachusetts |
| 73 | Norma Campbell | 14 | Daughter | — | Massachusetts |
| 74 | Alice Campbell | 10 | Daughter | — | Massachusetts |
| 75 | Le Roy Campbell | 5 | Son | — | Massachusetts |
| 76 | Warren Campbell | 3 | Son | — | Massachusetts |
| 77 | Edwin Campbell | 0 | Son | — | Massachusetts |
| 78 | John H Shamin | 44 | Head | Laborer | Massachusetts |
| 79 | Harriet Shamin | 43 | Wife | Laborer | Pennsylvania |
| 80 | Harriet J Shamin | 19 | Daughter | Typist | Massachusetts |
Related Census Records
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)