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Mary Mulligan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · New-Haven-County, Connecticut
Our Model Tree links this Mary Mulligan across the 1920, 1930 and 1940 US Censuses in New-Haven-County, Connecticut (XGBoost, ~Confirmed) — first a spouse (b.~1887), then head of a 6-person household.
Age 53
b. ~1887
Female
Spouse
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | New-Haven-County, Connecticut |
| Surname | Mulligan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | New Haven |
| 1935 Residence (County) | New Haven |
| Naturalization Status | Naturalized |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | New Haven |
| Est. Birth Year | ~1887 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| John Mulligan | Son | — | 20 | ~1920 |
| William Mulligan | Son | — | 15 | ~1925 |
| John Mulligan | Head | — | 59 | ~1881 |
| Helen Mulligan | Daughter | — | 23 | ~1917 |
| Mary Mulligan | Spouse | — | 53 | ~1887 |
| Dorothy Mulligan | Daughter | — | 21 | ~1919 |
Census Appearances
1920
New Haven, …
Spouse, age 34
New Haven, Connecticut · implied b. ~1886 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mulligan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1905 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
New Haven, …
Spouse, age 42
New Haven, Connecticut · implied b. ~1888 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mulligan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1906 |
| Age at First Marriage | 22 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
New-Haven-County, Connecticut
Spouse, age 53
New-Haven-County, Connecticut · implied b. ~1887 — 6 household members
| Surname | Mulligan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | New Haven |
| 1935 Residence (County) | New Haven |
| Naturalization Status | Naturalized |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Mulligan
Spouse · 1940 · age 53 · b. ~1887 · Connecticut
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — New-Haven-County, Connecticut
Open full size
1940 US Federal Census — New-Haven-County, Connecticut
Page Contents
32 people indexed on this census page (nara:1940:m-t0627-00542-00406)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Mulligan | 59 | Head | Proprietor | Ireland |
| 2 | Mary Mulligan THIS PERSON | 53 | Wife | — | Ireland |
| 3 | Helen Mulligan | 23 | Daughter | Book Keeper | Connecticut |
| 4 | Dorothy Mulligan | 21 | Daughter | — | Connecticut |
| 5 | John Mulligan | 20 | Son | Accountant | Connecticut |
| 6 | William Mulligan | 15 | Son | — | Connecticut |
| 7 | Charles Stackpole | 45 | Head | Optician | Massachusetts |
| 8 | Sadie J. Stackpole | 45 | Wife | — | Massachusetts |
| 9 | Charles Scott Stackpole | 10 | Son | — | Massachusetts |
| 10 | Henry M. Homores | 38 | Head | Fire-Man | Connecticut |
| 11 | Dorothy S. Homores | 39 | Wife | — | Massachusetts |
| 12 | Merton Magil | 57 | Head | Manager | Russia |
| 13 | Mamie X. Magil | 50 | Wife | — | Russia |
| 14 | Sonia Prince | 60 | Head | — | Poland |
| 15 | Isadore Gredinger | 57 | Head | Office Clerk | Romania |
| 16 | Annette Gredinger | 48 | Wife | — | Romania |
| 17 | Mark Gredinger | 20 | Son | Accountant | New York |
| 18 | Mollie Singer | 86 | Mother-in-law | — | Romania |
| 19 | Charles Vishup | 58 | Head | Owner | Russia |
| 20 | Bernard Vishup | 15 | Son | — | Connecticut |
| 21 | Rose Vishup | 58 | Wife | — | Russia |
| 22 | William Vishup | 24 | Son | Stretcher | Connecticut |
| 23 | Anne Vishup | 20 | Daughter | Book-Keeper | Connecticut |
| 24 | Emily Sanger | None | Lodger | — | — |
| 25 | William A. Peterson | 54 | Head | Mechanic | Denmark |
| 26 | Clara Peterson | 47 | Wife | — | Connecticut |
| 27 | Dorothea A. Peterson | 25 | Daughter | Music Teacher | Connecticut |
| 28 | Josephine F. Richards | 54 | Head | Saleslady | New York |
| 29 | Lewis W. Richards | 25 | Son | New Worker | Connecticut |
| 30 | Harriet B. Richards | 23 | Daughter | Clerk | Connecticut |
| 31 | Adolph Andersen | 46 | Head | Painter | Denmark |
| 32 | Dagmar Andersen | 43 | Wife | — | Denmark |
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)