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Mary Mulligan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · New-York-County, New York
Our Model Tree links this Mary Mulligan across the 1930 and 1940 US Censuses in New-York-County, New York (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 9-person household.
Age 18
b. ~1922
Female
Daughter
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | New-York-County, New York |
| Surname | Mulligan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | New York |
| Additional Details | |
| Occupation | Packer |
| Industry | W. Paper Box Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Packer |
| 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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Mulligan | Daughter | — | 18 | ~1922 |
| James Mulligan | Son | — | 16 | ~1924 |
| Margaret Mulligan | Spouse | — | 36 | ~1904 |
| Patrick Mulligan | Son | — | 4 | ~1936 |
| Raymond Mulligan | Son | — | 11 | ~1929 |
| John Mulligan | Son | — | 14 | ~1926 |
| Peter Mulligan | Son | — | 7 | ~1933 |
| Arthur Mulligan | Son | — | 9 | ~1931 |
| James Mulligan | Head | — | 42 | ~1898 |
Census Appearances
1930
New York, …
Daughter, age 7
New York, New York · implied b. ~1923 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mulligan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
New-York-County, New …
Daughter, age 18
New-York-County, New York · implied b. ~1922 — 9 household members
| Surname | Mulligan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | New York |
| Occupation | Packer |
| Industry | W. Paper Box Co. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 Mulligan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mulligan
Daughter · 1940 · age 18 · b. ~1922 · New York
★ You are viewing this record
Sibling
John Mulligan
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patrick Mulligan
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Mulligan
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Mulligan
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Mulligan
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Peter Mulligan
Sibling · 1940 · age 7
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 — New-York-County, New York
Open full size
1940 US Federal Census — New-York-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02629-00768)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ferdinand Wragge | 32 | Head | Helper | Puerto Rico |
| 2 | Agatha Wragge | 32 | Wife | Operator | Puerto Rico |
| 3 | Henry Geddes | 51 | Head | Laborer | Pennsylvania |
| 4 | Ruth Geddes | 45 | Wife | — | Pennsylvania |
| 5 | Kenneth Geddes | 25 | Son | Helper | Pennsylvania |
| 6 | Robert Geddes | 21 | Son | Laborer | Pennsylvania |
| 7 | Myrtle Geddes | 20 | Daughter | — | Pennsylvania |
| 8 | Blanche Geddes | 13 | Daughter | — | New York |
| 9 | Elizabeth Geddes | 11 | Daughter | — | New York |
| 10 | Edgar Geddes | 6 | Daughter | — | New York |
| 11 | — | None | — | — | — |
| 12 | — | None | — | — | — |
| 13 | — | None | — | — | — |
| 14 | Arthur Langlois | 59 | Head | Chef | New York |
| 15 | Margaret Langlois | 52 | Wife | — | New York |
| 16 | George Langlois | 18 | Son | New Worker | New York |
| 17 | Charles Langlois | 17 | Son | New Worker | New York |
| 18 | Joseph Langlois | 16 | Son | Delivery Boy | New York |
| 19 | John Gardanier | 40 | Head | Laundryman | Puerto Rico |
| 20 | Gueyen Gardanier | 32 | Wife | — | Puerto Rico |
| 21 | Jean Gardanier | 1 | Son | — | New York |
| 22 | Mario Torres | 37 | Son | Laborer | Puerto Rico |
| 23 | Aurea Torres | 39 | Daughter-in-law | Dressmaker | Puerto Rico |
| 24 | Maria Reina | 75 | Mother-in-law | — | Puerto Rico |
| 25 | Maryline Pauldes | 35 | Mother | Porter | Puerto Rico |
| 26 | Gladis Pauldes | 50 | Head | Janitor | Greece |
| 27 | Fanny Pauldes | 37 | Wife | Janitor | Greece |
| 28 | Demetra Pauldes | 16 | Son | — | New York |
| 29 | Edmund Pauldes | 14 | Son | — | New York |
| 30 | Elefterios Pauldes | 11 | Son | — | New York |
| 31 | James Mulligan | 42 | Head | Watchman | New York |
| 32 | Margaret Mulligan | 36 | Wife | Cleaner | New York |
| 33 | Mary Mulligan THIS PERSON | 18 | Daughter | Packer | New York |
| 34 | James Mulligan | 16 | Son | — | New York |
| 35 | John Mulligan | 14 | Son | — | New York |
| 36 | Raymond Mulligan | 11 | Son | — | New York |
| 37 | Arthur Mulligan | 9 | Son | — | New York |
| 38 | Peter Mulligan | 7 | Son | — | New York |
| 39 | Patrick Mulligan | 4 | Son | — | New York |
| 40 | William Burns | 54 | Head | Laborer | New York |
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)