HC
Helen Cooper — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cambria-County, Pennsylvania
Our Model Tree links this Helen Cooper across the 1920, 1930 and 1940 US Censuses in Cambria-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Frank & Fred — first a daughter (b.~1913), then head of a 6-person household.
Age 27
b. ~1913
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cambria-County, Pennsylvania |
| Surname | Cooper |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Johnstown City |
| 1935 Residence (County) | Cambria |
| Additional Details | |
| Occupation | Saleslady |
| Industry | Department Store |
| Class of Worker | PW |
| Hours Worked | 8 |
| Income (1939) | 104 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Saleslady |
| Township / Ward | Johnstown City |
| Est. Birth Year | ~1913 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Mary Cooper | Daughter | — | 25 | ~1915 |
| Elizabeth Cooper | Spouse | — | 59 | ~1881 |
| Fred Cooper | Head | — | 60 | ~1880 |
| Francis Cooper | Son | — | 32 | ~1908 |
| Ann Cooper | Daughter | — | 34 | ~1906 |
| Helen Cooper | Daughter | — | 27 | ~1913 |
Census Appearances
1920
Cambria, Pennsylvania
Daughter, age 7
Cambria, Pennsylvania · implied b. ~1913 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Couper |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Cambria, Pennsylvania
Daughter, age 17
Cambria, Pennsylvania · implied b. ~1913 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cooper |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| 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
Cambria-County, Pennsylvania
Daughter, age 27
Cambria-County, Pennsylvania · implied b. ~1913 — 6 household members
| Surname | Cooper |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Johnstown City |
| 1935 Residence (County) | Cambria |
| Occupation | Saleslady |
| Industry | Department Store |
| Class of Worker | PW |
| Hours Worked | 8 |
| Income (1939) | 104 |
| Highest Grade | Hs 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 Helen Cooper across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Frank Couper (~0.92 confidence) and father Fred Cooper (~0.92 confidence) and father John Cooper (~0.92 confidence) and mother Anna Cooper (~0.92 confidence) and mother Elizabeth Couper (~0.92 confidence) and mother Elizabeth Cooper (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frank Couper
b. ~1877
Source father
● Household
· direct · ~0.92
Father
Fred Cooper
b. ~1880
Source father
● Household
· direct · ~0.92
Father
John Cooper
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Anna Cooper
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Elizabeth Couper
b. ~1879
Source mother
● Household
· direct · ~0.92
Mother
Elizabeth Cooper
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Helen Cooper
Daughter · 1940 · age 27 · b. ~1913 · Pennsylvania
★ You are viewing this record
Sibling
Ann Cooper
Sibling · 1940 · age 34
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Cooper
Sibling · 1940 · age 32
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Cooper
Sibling · 1940 · age 25
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 — Cambria-County, Pennsylvania
Open full size
1940 US Federal Census — Cambria-County, Pennsylvania
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03454-00203)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lillian Reed | 9 | Lodger | — | Pennsylvania |
| 2 | Harry Petrillack | 29 | Head | Truck Driver | Pennsylvania |
| 3 | Sadie @ Petrillack | 22 | Wife | — | Pennsylvania |
| 4 | James Petrillack | 1 | Son | — | Pennsylvania |
| 5 | Preston Rhodes | 32 | Head | Burner | Pennsylvania |
| 6 | Mary Rhodes | 34 | Wife | — | Pennsylvania |
| 7 | Marlin @ Rhodes | 13 | Daughter | — | Pennsylvania |
| 8 | Charles F. Rodgers | 35 | Head | Metallurgist | Pennsylvania |
| 9 | Geraldine @ Rodgers | 31 | Wife | — | Pennsylvania |
| 10 | Jane Rodgers | 13 | Daughter | — | Pennsylvania |
| 11 | Jean Rodgers | 11 | Daughter | — | Pennsylvania |
| 12 | Theodore J. Lydic | 35 | Head | Laborer | Pennsylvania |
| 13 | Dorothy Lydic | 27 | Wife | — | Pennsylvania |
| 14 | Delores Lydic | 9 | Daughter | — | Pennsylvania |
| 15 | Robert Lydic | 1 | Son | — | Pennsylvania |
| 16 | Emma @ Oldham | 37 | Head | — | Florida |
| 17 | H. Lee Oldham | 12 | Son | — | Pennsylvania |
| 18 | Edward Oldham | 10 | Son | — | Pennsylvania |
| 19 | Betty Jane Oldham | 8 | Daughter | — | Pennsylvania |
| 21 | Fred Cooper | 60 | Head | Machinist | Pennsylvania |
| 22 | Elizabeth @ Cooper | 59 | Wife | — | Pennsylvania |
| 23 | Ann Cooper | 34 | Daughter | Teacher | Pennsylvania |
| 24 | Francis Cooper | 32 | Son | Machinist | Pennsylvania |
| 25 | Helen Cooper THIS PERSON | 27 | Daughter | Saleslady | Pennsylvania |
| 26 | Mary Rita Cooper | 25 | Daughter | Stenographer | Pennsylvania |
| 27 | Kennedy W. Hamilton | 61 | Head | Office Manager | Pennsylvania |
| 28 | Lena J. @ Hamilton | 56 | Wife | — | Pennsylvania |
| 29 | Bertha Tross | 59 | Sister-in-law | — | Pennsylvania |
| 30 | William @ Zelen | 35 | Lodger | Salesman | Pennsylvania |
| 31 | Ludwig Tross | 43 | Head | Salesman | Pennsylvania |
| 32 | Margaret @ Tross | 42 | Wife | — | Pennsylvania |
| 33 | Patricia A. Tross | 19 | Daughter | — | Pennsylvania |
| 34 | Ludwig Jr. Tross | 15 | Son | — | Pennsylvania |
| 35 | Joan Tross | 13 | Daughter | — | Pennsylvania |
| 36 | Mary V. @ Keffer | 72 | Head | — | Pennsylvania |
| 37 | Ella @ Whitten | 75 | Sister | — | Pennsylvania |
| 38 | Laura J. @ Barbery | 81 | Head | — | Pennsylvania |
| 39 | Nettie @ Gulton | 83 | Sister | — | Pennsylvania |
| 40 | Hulda Smith | 68 | Lodger | — | Pennsylvania |
Pedigree Summary
Helen + 3 siblings
Gen 1 · 6 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)