HC
Helen Campbell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Worcester-County, Massachusetts
Our Model Tree links this Helen Campbell across the 1930 and 1940 US Censuses in Worcester-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 11-person household.
Age 12
b. ~1928
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Worcester-County, Massachusetts |
| Surname | Campbell |
| Given Name | Helen R |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Worcester |
| 1935 Residence (County) | Worcester |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | G 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Worcester |
| Est. Birth Year | ~1928 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Effie Campbell | Daughter | — | 10 | ~1930 |
| Hazel Campbell | Daughter | — | 3 | ~1937 |
| Helen Campbell | Daughter | — | 12 | ~1928 |
| Nellie Campbell | Daughter | — | 19 | ~1921 |
| Laura Campbell | Daughter | — | 8 | ~1932 |
| Alice Campbell | Daughter | — | 21 | ~1919 |
| Mary Campbell | Daughter | — | 14 | ~1926 |
| Josephine Campbell | Daughter | — | 16 | ~1924 |
| John Campbell | Head | — | 55 | ~1885 |
| Frank Campbell | Son | — | 18 | ~1922 |
| Laura Campbell | Spouse | — | 42 | ~1898 |
Census Appearances
1930
Worcester, Massachusetts
Daughter, age 1
Worcester, Massachusetts · implied b. ~1929 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | New Hampshire |
| Can Read/Write | none |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Worcester-County, Massachusetts
Daughter, age 12
Worcester-County, Massachusetts · implied b. ~1928 — 11 household members
| Surname | Campbell |
| Given Name | Helen R |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Worcester |
| 1935 Residence (County) | Worcester |
| Class of Worker | 0 |
| Highest Grade | G 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 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 12 · b. ~1928 · Massachusetts
★ You are viewing this record
Sibling
Alice Campbell
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nellie Campbell
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hazel Campbell
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Josephine Campbell
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Campbell
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Laura Campbell
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Effie Campbell
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Campbell
Sibling · 1940 · age 18
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 — Worcester-County, Massachusetts
Open full size
1940 US Federal Census — Worcester-County, Massachusetts
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01716-00229)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Irene M Bontemone | 8 | Daughter | — | Massachusetts |
| 42 | Joan A Bontemone | 7 | Daughter | — | Massachusetts |
| 43 | Douglas A Bontemone | 5 | Son | — | Massachusetts |
| 44 | Faith E Bontemone | 1 | Daughter | — | Massachusetts |
| 45 | John O Campbell | 55 | Head | Painter | Massachusetts |
| 46 | Laura E Campbell | 42 | Wife | — | New Hampshire |
| 47 | Alice T Campbell | 21 | Daughter | Maid | New Hampshire |
| 48 | Nellie M Campbell | 19 | Daughter | Maid | Massachusetts |
| 49 | Frank A Campbell | 18 | Son | Laborer | Massachusetts |
| 50 | Josephine F Campbell | 16 | Daughter | New Worker | Massachusetts |
| 51 | Mary A Campbell | 14 | Daughter | — | Massachusetts |
| 52 | Helen R Campbell THIS PERSON | 12 | Daughter | — | Massachusetts |
| 53 | Effie V Campbell | 10 | Daughter | — | Massachusetts |
| 54 | Laura M Campbell | 8 | Daughter | — | Massachusetts |
| 55 | Hazel M Campbell | 3 | Daughter | — | Massachusetts |
| 56 | James Q Fryer | 60 | Head | Weaver | England |
| 57 | Rebecca Fryer | 60 | Wife | — | England |
| 58 | Erika E Fryer | 26 | Daughter | Winder | Massachusetts |
| 59 | Edith M Fryer | 21 | Daughter | Stitcher | Massachusetts |
| 60 | James W Fryer | 19 | Son | — | Massachusetts |
| 61 | James Garrigan | 40 | Head | Tool Maker | New York |
| 62 | Ida E Garrigan | 32 | Wife | — | Massachusetts |
| 63 | Joseph F Garrigan | 13 | Son | — | Massachusetts |
| 64 | Barbara Garrigan | 12 | Daughter | — | Massachusetts |
| 65 | Ruth A Garrigan | 11 | Daughter | — | Massachusetts |
| 66 | Robert E Garrigan | 10 | Son | — | Massachusetts |
| 67 | Ronald Garrigan | 8 | Son | — | Massachusetts |
| 68 | Kenneth Garrigan | 5 | Son | — | Massachusetts |
| 69 | George E Magna | 36 | Head | Sander | Massachusetts |
| 70 | Viola E.E. Magna | 30 | Wife | — | Massachusetts |
| 71 | Joan E Magna | 2 | Daughter | — | Massachusetts |
| 72 | Claire R Magna | 0 | Daughter | — | Massachusetts |
| 73 | Albert Benoit | 66 | Father-in-law | — | Massachusetts |
| 74 | Constance Sherer | 23 | Sister-in-law | Maid | Massachusetts |
| 75 | Lorna Sherer | 31 | Sister-in-law | — | Massachusetts |
| 76 | Arthur Sherer | 30 | Brother-in-law | Laborer | Massachusetts |
| 77 | Joseph F Cote | 41 | Head | Repair Man | Massachusetts |
| 78 | Rose B Cote | 40 | Wife | — | Massachusetts |
| 79 | Edward Cote | 17 | Son | — | 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)