DC
Dorothy Campbell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lehigh-County, Pennsylvania
Our Model Tree links this Dorothy Campbell across the 1920, 1930 and 1940 US Censuses in Lehigh-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Charles & Chas — first a daughter (b.~1917), then head of a 3-person household.
Age 23
b. ~1917
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lehigh-County, Pennsylvania |
| Surname | Campbell |
| Given Name | Dorothy |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Allentown City |
| 1935 Residence (County) | Lehigh |
| Additional Details | |
| Occupation | saleslady |
| Industry | retail hat store |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 800 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Saleslady |
| Township / Ward | Allentown City |
| Est. Birth Year | ~1917 |
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 Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Charles Campbell | Spouse | — | 57 | ~1883 |
| Emma Campbell | Head | — | 54 | ~1886 |
| Dorothy Campbell | Daughter | — | 23 | ~1917 |
Census Appearances
1920
Lehigh, Pennsylvania
Daughter, age 3
Lehigh, Pennsylvania · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Dorothy R |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Lehigh, Pennsylvania
Daughter, age 13
Lehigh, Pennsylvania · implied b. ~1917 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Dorothy R |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Lehigh-County, Pennsylvania
Daughter, age 23
Lehigh-County, Pennsylvania · implied b. ~1917 — 3 household members
| Surname | Campbell |
| Given Name | Dorothy |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Allentown City |
| 1935 Residence (County) | Lehigh |
| Occupation | saleslady |
| Industry | retail hat store |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 800 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| 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 Dorothy Campbell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Campbell (~0.92 confidence) and father Chas Campbell (~0.92 confidence) and mother Emma Campbell (~0.92 confidence) and mother Emma Campbell (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Campbell
b. ~1882
Source father
● Household
· direct · ~0.92
Father
Chas Campbell
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Emma Campbell
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Emma Campbell
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Dorothy Campbell
Daughter · 1940 · age 23 · b. ~1917 · Pennsylvania
★ 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 — Lehigh-County, Pennsylvania
Open full size
1940 US Federal Census — Lehigh-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03542-00437)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Virginia Mangel | 12 | daughter | — | Pennsylvania |
| 2 | Charles D Mangel | 36 | Head | Medical Doctor | Pennsylvania |
| 3 | Anna Mangel | 36 | wife | — | Pennsylvania |
| 4 | Charles E Mangel | 3 | son | — | Maryland |
| 5 | Ida E Noble | 60 | Head | — | Pennsylvania |
| 6 | Dawn H. Ivor Noble | 32 | son | Manager | Pennsylvania |
| 7 | Carl S Kota | 28 | Head | Auditor | Pennsylvania |
| 8 | Sally Kota | 26 | wife | — | Pennsylvania |
| 9 | Martin Klein | 36 | Head | Loomfixer | Pennsylvania |
| 10 | Gertrude Klein | 34 | wife | — | Pennsylvania |
| 11 | Robert Klein | 5 | son | — | Pennsylvania |
| 12 | Raymond R Fisher | 23 | Head | Attendant | Pennsylvania |
| 13 | Stella M Fisher | 23 | wife | — | Pennsylvania |
| 14 | Roy M Klockner | 37 | Head | Auditor | Pennsylvania |
| 15 | Robert Klockner | 34 | brother | Delivery Boy | Pennsylvania |
| 16 | John Kistler | 46 | Head | Medical Doctor | Pennsylvania |
| 17 | Florence Kistler | 48 | wife | — | Pennsylvania |
| 18 | Matilda Kistler | 81 | mother | — | Pennsylvania |
| 19 | Samuel E Wolf | 64 | Head | Salesman | Pennsylvania |
| 20 | Anna Wolf | 63 | wife | — | Pennsylvania |
| 21 | Samuel Jr Wolf | 30 | son | — | Pennsylvania |
| 22 | Leo T Oylock | 35 | Head | Medical Doctor | Pennsylvania |
| 23 | Catherine Oylock | 32 | wife | — | Pennsylvania |
| 24 | Leo T. Jr Oylock | 13 | son | — | Pennsylvania |
| 25 | Steward M Bibber | 60 | Head | — | Pennsylvania |
| 26 | Ella Bibber | 55 | wife | Medical Doctor | Pennsylvania |
| 27 | Ella Bibber | 25 | daughter | — | Pennsylvania |
| 28 | John W Noble | 45 | Head | — | Pennsylvania |
| 29 | Catherine Noble | 40 | wife | Medical Doctor | Pennsylvania |
| 30 | Mary E. A Noble | 19 | daughter | — | Pennsylvania |
| 31 | John W Jr Noble | 17 | son | — | Pennsylvania |
| 32 | Helen M Noble | 35 | sister | — | Pennsylvania |
| 33 | Clayton D Hertzog | 45 | Head | Laborer | Pennsylvania |
| 34 | Dorothy Hertzog | 16 | daughter | — | Pennsylvania |
| 35 | Helen J Dorfman | 43 | Head | — | Pennsylvania |
| 36 | Martha Dorfman | 78 | mother | — | Pennsylvania |
| 37 | John Loeffle | 54 | lodger | Steam Fitter | Pennsylvania |
| 38 | Emma Campbell | 54 | Head | — | Pennsylvania |
| 39 | Charles Campbell | 57 | husband | — | Pennsylvania |
| 40 | Dorothy Campbell THIS PERSON | 23 | daughter | Saleslady | Pennsylvania |
Pedigree Summary
Dorothy
Gen 1 · 4 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)