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Helen Mcdonald — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lackawanna-County, Pennsylvania
Our Model Tree links this Helen Mcdonald across the 1920, 1930 and 1940 US Censuses in Lackawanna-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Anthony & Leo — first a daughter (b.~1917), then head of a 7-person household.
Age 23
b. ~1917
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lackawanna-County, Pennsylvania |
| Surname | McDonald |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Carbondale City |
| 1935 Residence (County) | Lackawanna |
| Additional Details | |
| Occupation | Typist |
| Industry | N. Y. A. |
| Class of Worker | GW |
| Hours Worked | 16 |
| Income (1939) | 236 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Typist |
| Township / Ward | Carbondale 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Frances Mcdonald | Spouse | — | 42 | ~1898 |
| Ann Mcdonald | Daughter | — | 8 | ~1932 |
| Leo Mcdonald | Son | — | 17 | ~1923 |
| Joseph Mcdonald | Son | — | 12 | ~1928 |
| Leo Mcdonald | Head | — | 45 | ~1895 |
| Mildred Mcdonald | Daughter | — | 15 | ~1925 |
| Helen Mcdonald | Daughter | — | 23 | ~1917 |
Census Appearances
1920
Lackawanna, Pennsylvania
Daughter, age 3
Lackawanna, Pennsylvania · implied b. ~1917 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonnell |
| Given Name | Helen |
| 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
Lackawanna, Pennsylvania
Daughter, age 14
Lackawanna, Pennsylvania · implied b. ~1916 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDONNELL |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| 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
Lackawanna-County, Pennsylvania
Daughter, age 23
Lackawanna-County, Pennsylvania · implied b. ~1917 — 7 household members
| Surname | McDonald |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Carbondale City |
| 1935 Residence (County) | Lackawanna |
| Occupation | Typist |
| Industry | N. Y. A. |
| Class of Worker | GW |
| Hours Worked | 16 |
| Income (1939) | 236 |
| 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 Mcdonald across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Anthony Mcdonnell (~0.92 confidence) and father Leo Mcdonald (~0.92 confidence) and father Patrick Mcdonnell (~0.92 confidence) and mother Frances Mcdonald (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Anthony Mcdonnell
b. ~1878
Source father
● Household
· direct · ~0.92
Father
Leo Mcdonald
b. ~1895
Source father
● Household
· direct · ~0.92
Father
Patrick Mcdonnell
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Frances Mcdonald
b. ~1898
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Helen Mcdonald
Daughter · 1940 · age 23 · b. ~1917 · Pennsylvania
★ You are viewing this record
Sibling
Mildred Mcdonald
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Mcdonald
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ann Mcdonald
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leo Mcdonald
Sibling · 1940 · age 17
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 — Lackawanna-County, Pennsylvania
Open full size
1940 US Federal Census — Lackawanna-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03522-00706)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Myrtle Kelly | 29 | Wife | — | Pennsylvania |
| 2 | Francis E. Kelly | 2 | Son | — | Pennsylvania |
| 3 | Leo Mcdonald | 45 | Head | Assistant Foreman | Pennsylvania |
| 4 | Frances Mcdonald | 42 | Wife | — | Pennsylvania |
| 5 | Helen Mcdonald THIS PERSON | 23 | Daughter | Typist | Pennsylvania |
| 6 | Leo Jr. Mcdonald | 17 | Son | New W. | Pennsylvania |
| 7 | Mildred Mcdonald | 15 | Daughter | — | Pennsylvania |
| 8 | Joseph Mcdonald | 12 | Son | — | Pennsylvania |
| 9 | Ann Mcdonald | 8 | Daughter | — | Pennsylvania |
| 10 | Mary Theophilus | 72 | Head | — | Pennsylvania |
| 11 | William Williams | 81 | Head | Car Repairer | England |
| 12 | George L. Congedo | 31 | Son-in-law | Janitor | Pennsylvania |
| 13 | Edith M. Congedo | 32 | Daughter | — | Pennsylvania |
| 14 | Ruth B. Congedo | 22 | Granddaughter | New Worker | Pennsylvania |
| 15 | Lewis Davis | 59 | Head | Locomotive Engineer | Pennsylvania |
| 16 | Charlotte Davis | 57 | Wife | — | Pennsylvania |
| 17 | Durwood Davis | 23 | Son | Manager | Pennsylvania |
| 18 | Charlotte Davis | 22 | Daughter | New Worker | Pennsylvania |
| 19 | Joseph Borman | 33 | Head | Laborer | Pennsylvania |
| 20 | Mary Borman | 33 | Wife | — | Pennsylvania |
| 21 | Joan Borman | 9 | Daughter | — | Pennsylvania |
| 22 | Earl Dunlap | 50 | Brother-in-law | Finish Line | Pennsylvania |
| 23 | Albert J. Haden | 63 | Head | Locomotive Engineer | Pennsylvania |
| 24 | Mary Haden | 54 | Wife | — | Pennsylvania |
| 25 | Donald Klein | 40 | Head | Janitor | Pennsylvania |
| 26 | Annetta Klein | 33 | Wife | — | Pennsylvania |
| 27 | Donald Jr. Klein | 13 | Son | — | Pennsylvania |
| 28 | Mary L. Klein | 12 | Daughter | — | Pennsylvania |
| 29 | William Klein | 11 | Son | — | Pennsylvania |
| 30 | James Klein | 7 | Son | — | Pennsylvania |
| 31 | Joseph Woody | 41 | Head | Brakeman | Pennsylvania |
| 32 | Marie Woody | 41 | Wife | — | Pennsylvania |
| 33 | John Woody | 21 | Son | Apprentice Printer | Pennsylvania |
| 34 | Mary Woody | 17 | Daughter | Librarian | Pennsylvania |
| 35 | Betty Woody | 11 | Daughter | — | Pennsylvania |
| 36 | Paul Woody | 4 | Son | — | Pennsylvania |
| 37 | Ivan J. Cobb | 27 | Head | Layout Clerk | Pennsylvania |
| 38 | Elizabeth H. Cobb | 30 | Wife | Nurse | Pennsylvania |
| 39 | Ivan E. Cobb | 4 | Son | — | Pennsylvania |
| 40 | Michael Nelson | 57 | Head | Laborer | Pennsylvania |
Pedigree Summary
Helen + 4 siblings
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)