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James Mcdonough — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Union-County, New Jersey
Our Model Tree links this James Mcdonough across the 1930 and 1940 US Censuses in Union-County, New Jersey (XGBoost, ~Confirmed) — first a son (b.~1915), then head of a 6-person household.
Age 25
b. ~1915
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Union-County, New Jersey |
| Surname | McDonough |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Elizabeth |
| 1935 Residence (County) | Union |
| Additional Details | |
| Occupation | Machinist |
| Industry | Automobile |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Machinist |
| Township / Ward | Elizabeth |
| Est. Birth Year | ~1915 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| John Mcdonough | Head | — | 61 | ~1879 |
| John Mcdonough | Son | — | 27 | ~1913 |
| Alice Mcdonough | Spouse | — | 59 | ~1881 |
| Anna Mcdonough | Daughter | — | 29 | ~1911 |
| Loretta Mcdonough | Daughter | — | 31 | ~1909 |
| James Mcdonough | Son | — | 25 | ~1915 |
Census Appearances
1930
Union, New …
Son, age 14
Union, New Jersey · implied b. ~1916 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonough |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Union-County, New …
Son, age 25
Union-County, New Jersey · implied b. ~1915 — 6 household members
| Surname | McDonough |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Elizabeth |
| 1935 Residence (County) | Union |
| Occupation | Machinist |
| Industry | Automobile |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | H-4 |
| 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 James Mcdonough across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Mcdonough
Son · 1940 · age 25 · b. ~1915 · New Jersey
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Sibling
Loretta Mcdonough
Sibling · 1940 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Mcdonough
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mcdonough
Sibling · 1940 · age 27
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 — Union-County, New Jersey
Open full size
1940 US Federal Census — Union-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02397-00649)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Clayton Haggerty | 37 | Head | Painter | New Jersey |
| 2 | Ruth Haggerty | 14 | Daughter | — | New Jersey |
| 3 | Thomas Jr. Haggerty | 12 | Son | — | New Jersey |
| 4 | Arlene Haggerty | 8 | Daughter | — | New Jersey |
| 5 | John Manning | 53 | Head | Painter | New Jersey |
| 6 | Catherine Manning | 54 | Wife | — | New Jersey |
| 7 | Margaret Manning | 19 | Daughter | — | New Jersey |
| 8 | Eleanor Manning | 19 | Daughter | — | New Jersey |
| 9 | Catherine Manning | 16 | Daughter | — | New Jersey |
| 10 | Cecelia Manning | 15 | Daughter | — | New Jersey |
| 11 | Alice Sheran | 44 | Head | — | New Jersey |
| 12 | Stanley Sheran | 23 | Son | — | New Jersey |
| 13 | James Jr. Gerhan | 25 | Son-in-law | Linotype Operator | New Jersey |
| 14 | Marie Gerhan | 23 | Daughter | — | New Jersey |
| 15 | Marie Gerhan | 5 | Granddaughter | — | New Jersey |
| 16 | Regina Gerhan | 4 | Granddaughter | — | New Jersey |
| 17 | James J. Iii Gerhan | 2 | Grandson | — | New Jersey |
| 18 | John Mcdonough | 61 | Head | Stillman | New Jersey |
| 19 | Alice Mcdonough | 59 | Wife | — | New Jersey |
| 20 | Loretta Mcdonough | 31 | Daughter | — | New Jersey |
| 21 | Anna Mcdonough | 29 | Daughter | Clerk-Typist | New Jersey |
| 22 | John Mcdonough | 27 | Son | Metal Worker | New Jersey |
| 23 | James Mcdonough THIS PERSON | 25 | Son | Machinist | New Jersey |
| 24 | Thomas Mcmahon | 64 | Head | Salesman | New York |
| 25 | Agnes Mcmahon | 38 | Wife | — | New Jersey |
| 26 | Thomas Mcmahon | 15 | Son | — | New Jersey |
| 27 | George Mcmahon | 13 | Son | — | New Jersey |
| 28 | Margaret Gill | 48 | Head | — | New Jersey |
| 29 | Paul Bethe | 66 | Head | Ship Carpenter | Germany |
| 30 | Magda Bethe | 60 | Wife | — | Germany |
| 31 | Helga Bethe | 31 | Daughter | 2Nd Hand Store | New Jersey |
| 32 | Mildred Bethe | 23 | Daughter | — | New Jersey |
| 33 | Dorothy Mary | 33 | Daughter | — | New Jersey |
| 34 | George Mary | 33 | Son-in-law | Salesman | New Jersey |
| 35 | Arlie Mertens | 51 | Head | — | New Jersey |
| 36 | Edward Mertens | 27 | Son | Paper Mill | New Jersey |
| 37 | Dorothy Mertens | 22 | Daughter | None | New Jersey |
| 38 | Ann Mertens | 20 | Daughter | Inspector | New Jersey |
| 39 | Ursula Mertens | 18 | Daughter | New Worker | New Jersey |
| 40 | Block 22 Ends Here | None | — | — | — |
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)