MS
Margaret Sweeney — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Nassau-County, New York
Our Model Tree links this Margaret Sweeney across the 1920, 1930 and 1940 US Censuses in Nassau-County, New York (XGBoost, ~Confirmed) — first a spouse (b.~1881), then head of a 3-person household.
Age 59
b. ~1881
Female
Spouse
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Nassau-County, New York |
| Surname | Sweeney |
| Given Name | Margaret |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Woodburgh |
| 1935 Residence (County) | Nassau |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same home |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Woodburgh |
| Est. Birth Year | ~1881 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Michael Sweeney | Head | — | 60 | ~1880 |
| James Sweeney | Son | — | 19 | ~1921 |
| Margaret Sweeney | Spouse | — | 59 | ~1881 |
Census Appearances
1920
Nassau, New …
Spouse, age 38
Nassau, New York · implied b. ~1882 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sweeney |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1894 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Nassau, New …
Spouse, age 48
Nassau, New York · implied b. ~1882 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sweeney |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1905 |
| Age at First Marriage | 37 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Nassau-County, New …
Spouse, age 59
Nassau-County, New York · implied b. ~1881 — 3 household members
| Surname | Sweeney |
| Given Name | Margaret |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | Woodburgh |
| 1935 Residence (County) | Nassau |
| Naturalization Status | Naturalized |
| Highest Grade | No 8 |
| 1935 Residence | Same home |
| 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 Margaret Sweeney across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Margaret Sweeney
Spouse · 1940 · age 59 · b. ~1881 · New York
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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 — Nassau-County, New York
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1940 US Federal Census — Nassau-County, New York
Page Contents
11 people indexed on this census page (nara:1940:m-t0627-02687-00536)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary O'Connor | 33 | servant | Cook | Ireland |
| 42 | Newbold L. Herrick | 55 | head | Broker | New York |
| 43 | Pauline B. Herrick | 51 | wife | — | New Jersey |
| 44 | Pauline Herrick | 19 | daughter | — | New York |
| 45 | Jerome Roscoe | 28 | lodger | Clerk | Kansas |
| 46 | Blanche Herbison | 22 | servant | Chambermaid | Alabama |
| 47 | Katherine Corcoran | 26 | servant | Waitress | Ireland |
| 48 | Katherine Harnett | 36 | servant | Cook | Ireland |
| 49 | Michael Sweeney | 60 | head | Caretaker | Ireland |
| 50 | Margaret Sweeney THIS PERSON | 59 | wife | — | Ireland |
| 51 | James Sweeney | 19 | son | — | 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)