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Helen Mcdonald — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hudson-County, New Jersey
Our Model Tree links this Helen Mcdonald across the 1930 and 1940 US Censuses in Hudson-County, New Jersey (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 9-person household.
Age 13
b. ~1927
Female
Daughter
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hudson-County, New Jersey |
| Surname | McDonald |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Weehawken Town |
| 1935 Residence (County) | Hudson |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Township / Ward | Weehawken Town |
| Est. Birth Year | ~1927 |
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 |
|---|---|---|---|---|
| William Mcdonald | Son | — | 13 | ~1927 |
| Helen Mcdonald | Daughter | — | 13 | ~1927 |
| Grace Mcdonald | Daughter | — | 12 | ~1928 |
| William Mcdonald | Son | — | 10 | ~1930 |
| William Mcdonald | Head | — | 34 | ~1906 |
| Elizabeth Mcdonald | Spouse | — | 34 | ~1906 |
| John Mcdonald | Son | — | 1 | ~1939 |
| Patricia Mcdonald | Daughter | — | 3 | ~1937 |
| Margaret Mcdonald | Daughter | — | 6 | ~1934 |
Census Appearances
1930
Hudson, New …
Daughter, age 1
Hudson, New Jersey · implied b. ~1929 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonald |
| Given Name | Helen L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Hudson-County, New …
Daughter, age 13
Hudson-County, New Jersey · implied b. ~1927 — 9 household members
| Surname | McDonald |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Weehawken Town |
| 1935 Residence (County) | Hudson |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Helen Mcdonald
Daughter · 1940 · age 13 · b. ~1927 · New Jersey
★ You are viewing this record
Sibling
John Mcdonald
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Mcdonald
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Mcdonald
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Mcdonald
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Grace Mcdonald
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Mcdonald
Sibling · 1940 · age 13
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 — Hudson-County, New Jersey
Open full size
1940 US Federal Census — Hudson-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02353-01003)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James Traynor | 4 | Son | — | New Jersey |
| 2 | Donald Mccoppen | 43 | Head | Painter | New Jersey |
| 3 | Katie Mccoppen | 39 | Wife | — | New Jersey |
| 4 | Edward Mccoppen | 21 | Son | Dryer | New Jersey |
| 5 | Marie Mccoppen | 14 | Daughter | — | New Jersey |
| 6 | William Mcdonald | 34 | Head | Ironworker | New Jersey |
| 7 | Elizabeth Mcdonald | 34 | Wife | — | Rhode Island |
| 8 | William Mcdonald | 13 | Son | — | New Jersey |
| 9 | Helen Mcdonald THIS PERSON | 13 | Daughter | — | New Jersey |
| 10 | Grace Mcdonald | 12 | Daughter | — | New Jersey |
| 11 | William Mcdonald | 10 | Son | — | New Jersey |
| 12 | Margaret Mcdonald | 6 | Daughter | — | New Jersey |
| 13 | Patricia Mcdonald | 3 | Daughter | — | New Jersey |
| 14 | John Mcdonald | 1 | Son | — | New Jersey |
| 15 | Rocco Parcial | 53 | Head | Floatman | Austria |
| 16 | Antoinette Parcial | 48 | Wife | — | Austria |
| 17 | Andrew Parcial | 25 | Son | Helper | New York |
| 18 | Rocco Parcial | 21 | Son | Deckhand | New York |
| 19 | Mary Parcial | 18 | Daughter | Iron Carrier | New York |
| 20 | Lucy Parcial | 16 | Daughter | — | New York |
| 21 | John Parcial | 14 | Son | — | New Jersey |
| 22 | Catherine Parcial | 9 | Daughter | — | New Jersey |
| 23 | Josephine Parcial | 5 | Daughter | — | New Jersey |
| 24 | Julia Sheehan | 53 | Head | — | New York |
| 25 | Lawrence Sheehan | 31 | Son | Loader | New Jersey |
| 26 | George Sheehan | 25 | Son | Laborer | New Jersey |
| 27 | Catherine Sheehan | 21 | Daughter | Packer | New Jersey |
| 28 | Edward Miller | 27 | Son-in-law | Helper | New Jersey |
| 29 | Johanna Miller | 24 | Daughter | — | New Jersey |
| 30 | Julia Miller | 1 | Granddaughter | — | New Jersey |
| 31 | Elizabeth Eisenmenger | 69 | Head | — | Hungary |
| 32 | Elsie Schuessler | 17 | Daughter | Packer | New Jersey |
| 33 | Eleanor Schuessler | 13 | Granddaughter | — | New Jersey |
| 34 | Frida Zunno | 44 | Head | — | New Jersey |
| 35 | Catherine Zunno | 24 | Daughter | Floor Girl | New Jersey |
| 36 | Alice Zunno | 22 | Daughter | Machine Operator | New Jersey |
| 37 | Grace Zunno | 19 | Daughter | Machine Operator | New Jersey |
| 38 | Ricilda Zunno | 16 | Daughter | New Worker | New Jersey |
| 39 | John Zunno | 13 | Son | — | New Jersey |
| 40 | Geraldine Zunno | 11 | Daughter | — | New Jersey |
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)