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Mary Mcdonough — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kings-County, New York
Our Model Tree links this Mary Mcdonough across the 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 10-person household.
Age 18
b. ~1922
Female
Daughter
Born: New York State
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | McDonough |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | New York State |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Occupation | Packer of Salt |
| Industry | Ice Cream Mfg |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 100 |
| Highest Grade | H 1 |
| 1935 Residence | Same Place |
| Birthplace (normalized) | new york state |
| Occupation | Packer Of Salt |
| Township / Ward | New York City |
| Est. Birth Year | ~1922 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Rita Mcdonough | Daughter | — | 12 | ~1928 |
| Irene Mcdonough | Daughter | — | 15 | ~1925 |
| Patricia Mcdonough | Daughter | — | 7 | ~1933 |
| Mary Mcdonough | Daughter | — | 18 | ~1922 |
| Patrick Mcdonough | Head | — | 71 | ~1869 |
| John Mcdonough | Son | — | 23 | ~1917 |
| Gilbert Mcdonough | Son | — | 20 | ~1920 |
| Edward Mcdonough | Son | — | 27 | ~1913 |
| William Mcdonough | Son | — | 22 | ~1918 |
| Mary Mcdonough | Spouse | — | 69 | ~1871 |
Census Appearances
1930
Kings, New …
Daughter, age 8
Kings, New York · implied b. ~1922 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonough |
| Given Name | Marjorie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | New York State |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | New York State |
| Can Read/Write | Yes |
| Birthplace (normalized) | new york state |
1940
Kings-County, New …
Daughter, age 18
Kings-County, New York · implied b. ~1922 — 10 household members
| Surname | McDonough |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | New York State |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Occupation | Packer of Salt |
| Industry | Ice Cream Mfg |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 100 |
| Highest Grade | H 1 |
| 1935 Residence | Same Place |
| Birthplace (normalized) | new york state |
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 Mary Mcdonough across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mcdonough
Daughter · 1940 · age 18 · b. ~1922 · New York
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Sibling
John Mcdonough
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Mcdonough
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Mcdonough
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gilbert Mcdonough
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Mcdonough
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rita Mcdonough
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irene Mcdonough
Sibling · 1940 · age 15
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 — Kings-County, New York
Open full size
1940 US Federal Census — Kings-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02587-00014)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anna Mcdonough | 30 | Daughter | Machine Operator | New York State |
| 2 | Patrick Mcdonough | 71 | Head | Barge Captain | New York State |
| 3 | Mary Mcdonough | 69 | Wife | — | New York State |
| 4 | Edward Mcdonough | 27 | Son | — | New York State |
| 5 | John Mcdonough | 23 | Son | Paint Mixer | New York State |
| 6 | Mary Mcdonough THIS PERSON | 18 | Daughter | Packer Of Salt | New York State |
| 7 | William Mcdonough | 22 | Son | Helper On Barge | New York State |
| 8 | Gilbert Mcdonough | 20 | Son | Helper On Barge | New York State |
| 9 | Irene Mcdonough | 15 | Daughter | — | New York State |
| 10 | Rita Mcdonough | 12 | Daughter | — | New York State |
| 11 | Patricia Mcdonough | 7 | Daughter | — | New York State |
| 12 | Ellen Radiff | 28 | Head | Saleslady | New York State |
| 13 | June Radiff | 7 | Daughter | — | New York State |
| 14 | George Grefeur | Grefner | 61 | Head | — | New York State |
| 15 | Mary A. Grefeur | Grefner | 56 | Wife | — | New York State |
| 16 | John Blogun | Bloger | 55 | Head | Clay Mixer | Russia |
| 17 | Elizabeth Blogun | Bloger | 44 | Wife | — | Russia |
| 18 | Walter Blogun | Bloger | 23 | Son | Machine Operator | Connecticut |
| 19 | Mary Blogun | Bloger | 21 | Daughter | Assembly Worker | New York State |
| 20 | Peter Blogun | Bloger | 16 | Son | — | New York State |
| 21 | Michale | Michael Engel | 45 | Head | Surface Mechanic | Russia |
| 22 | Pauline Engel | 44 | Wife | Machine Packer | Russia |
| 23 | Anna Engel | 23 | Daughter | — | New York State |
| 24 | Olga Engel | 18 | Daughter | Zipper Closer | New York State |
| 25 | Michale | Michael Engel | 15 | Son | — | New York State |
| 26 | Stella Engel | 9 | Daughter | — | New York State |
| 27 | Michel Runcavage | 33 | Head | Paste Maker | Lithuania |
| 28 | Anna Runcavage | 25 | Wife | — | Connecticut |
| 29 | Alice Runcavage | 1 | Daughter | — | Pennsylvania |
| 30 | John Oldakowski | 34 | Head | Electrician | Connecticut |
| 31 | Sophie Oldakowski | 26 | Wife | — | Connecticut |
| 32 | Alfred Oldakowski | 4 | Son | — | New York State |
| 33 | Rene Oldakowski | 4 | Son | — | New York State |
| 34 | Charles Harrison | 67 | Head | Brick Layer | England |
| 35 | Margaret Harrison | 54 | Wife | — | New York State |
| 36 | Catherine Donagher | 34 | Daughter | — | New York State |
| 37 | Harold Donagher | 37 | Son-in-law | Truck Driver | New York State |
| 38 | Jimmy Donagher | 13 | Son | — | New York State |
| 39 | Mary Donagher | 5 | Daughter | — | New York State |
| 40 | Florence Marcolin | 33 | Head | Telephone Operator | New York State |
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)