HC
Helen Campbell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this Helen Campbell across the 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1907), then head of a 9-person household.
Age 33
b. ~1907
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Campbell |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Additional Details | |
| Occupation | Secretary |
| Industry | Air Condition |
| Class of Worker | PW |
| Hours Worked | 46 |
| Income (1939) | 1300 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same home |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Secretary |
| Township / Ward | Philadelphia |
| Est. Birth Year | ~1907 |
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 |
|---|---|---|---|---|
| Marie Campbell | Daughter | — | 25 | ~1915 |
| Monica Campbell | Daughter | — | 27 | ~1913 |
| Margaret Campbell | Daughter | — | 24 | ~1916 |
| Frances Campbell | Daughter | — | 18 | ~1922 |
| Helen Campbell | Daughter | — | 33 | ~1907 |
| Mary Campbell | Head | — | 61 | ~1879 |
| James Campbell | Son | — | 18 | ~1922 |
| John Campbell | Son | — | 30 | ~1910 |
| Thomas Campbell | Son | — | 16 | ~1924 |
Census Appearances
1930
Philadelphia, Pennsylvania
Other, age 23
Philadelphia, Pennsylvania · implied b. ~1907 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Helen |
| Relationship to Head | Roomer |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 18 |
| Father's Birthplace | United States |
| Mother's Birthplace | United States |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Philadelphia-County, Pennsylvania
Daughter, age 33
Philadelphia-County, Pennsylvania · implied b. ~1907 — 9 household members
| Surname | Campbell |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Occupation | Secretary |
| Industry | Air Condition |
| Class of Worker | PW |
| Hours Worked | 46 |
| Income (1939) | 1300 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same home |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 33 · b. ~1907 · Pennsylvania
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Sibling
John Campbell
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Campbell
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Monica Campbell
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Campbell
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Campbell
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Campbell
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Campbell
Sibling · 1940 · age 24
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 — Philadelphia-County, Pennsylvania
Open full size
1940 US Federal Census — Philadelphia-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03702-00652)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Petro, Joseph Matt | 28 | Lodger | — | Pennsylvania |
| 2 | James Weston | 54 | Head | Maintenance | England |
| 3 | Margaret Weston | 56 | Wife | — | Pennsylvania |
| 4 | Elizabeth Weston | 36 | Daughter | Fitter | Pennsylvania |
| 5 | Charlotte Weston | 25 | Daughter | Operator | Pennsylvania |
| 6 | Harry Weston | 23 | Son | Cutter | Pennsylvania |
| 7 | Thomas D. Weston | 21 | Son | Plumber | Pennsylvania |
| 8 | Eleanor Weston | 15 | Daughter | — | Pennsylvania |
| 9 | William Weston | 10 | Son | — | Pennsylvania |
| 10 | Mary Rickard | 68 | Head | — | Pennsylvania |
| 11 | Charles Rickard | 34 | Son | Clerk | Pennsylvania |
| 12 | George W. Rickard | 33 | Son | Investigator | Pennsylvania |
| 13 | Charles Rickard | 16 | Grandson | — | Pennsylvania |
| 14 | Edward Kilah | 66 | Brother | — | Pennsylvania |
| 15 | Alexander Mcrae | 40 | Head | Motorman | New York |
| 16 | Ethel Mcrae | 38 | Wife | — | Pennsylvania |
| 17 | Evelyn Mcrae | 18 | Daughter | — | New York |
| 18 | Mary Mcrae | 16 | Daughter | — | Pennsylvania |
| 19 | Donald Mcrae | 14 | Son | — | Pennsylvania |
| 20 | Dennis Mcrae | 10 | Son | — | Pennsylvania |
| 21 | Joan Mcrae | 8 | Daughter | — | Pennsylvania |
| 22 | George Wagner | 70 | Father in law | Painter | Pennsylvania |
| 23 | Mary Wagner | 60 | Mother in law | — | Pennsylvania |
| 24 | Mary Campbell | 61 | Head | — | Pennsylvania |
| 25 | Marie Campbell | 25 | Daughter | Secretary | Pennsylvania |
| 26 | Helen Campbell THIS PERSON | 33 | Daughter | Secretary | Pennsylvania |
| 27 | John Campbell | 30 | Son | — | Pennsylvania |
| 28 | Monica Campbell | 27 | Daughter | Secretary | Pennsylvania |
| 29 | Margaret M. Campbell | 24 | Daughter | Stenographer | Pennsylvania |
| 30 | James Campbell | 18 | Son | Stenographer | Pennsylvania |
| 31 | Frances Campbell | 18 | Daughter | Clerk | Pennsylvania |
| 32 | Thomas Campbell | 16 | Son | — | Pennsylvania |
| 33 | Kathleen Sammon | 45 | Head | Stenographer | Pennsylvania |
| 34 | (Entire Family) | None | — | — | — |
| 35 | Daisy Bowman | 60 | Head | — | Pennsylvania |
| 36 | Lula Bowman | 51 | Sister | Seamstress | Pennsylvania |
| 37 | Andrew O'Keefe | 48 | Head | Inspector | Pennsylvania |
| 38 | Agnes O'Keefe | 45 | Wife | — | Pennsylvania |
| 39 | Andrew C. O'Keefe | 24 | Son | — | Pennsylvania |
| 40 | Nora C. Lennon | 72 | Head | — | Eire |
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)