MC
Mary Clancy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kings-County, New York
Our Model Tree links this Mary Clancy across the 1920, 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed) — first a spouse (b.~1894), then head of a 3-person household.
Age 46
b. ~1894
Female
Spouse
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Clancy |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Township / Ward | New York City |
| Est. Birth Year | ~1894 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Clancy | Spouse | — | 46 | ~1894 |
| John Clancy | Head | — | 50 | ~1890 |
| John Clancy | Son | — | 21 | ~1919 |
Census Appearances
1920
Kings, New …
Spouse, age 25
Kings, New York · implied b. ~1895 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clancy |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Kings, New …
Spouse, age 35
Kings, New York · implied b. ~1895 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clancy |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | New York |
| Age at First Marriage | 19 |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | none |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Spouse, age 46
Kings-County, New York · implied b. ~1894 — 3 household members
| Surname | Clancy |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Highest Grade | No 8 |
| 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 Clancy 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 Clancy
Spouse · 1940 · age 46 · b. ~1894 · 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 — 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-t0627-02568-00889)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Piccozzi | 4 | Son | — | New York |
| 2 | Alice Ryan | 45 | Head | — | New York |
| 3 | William Moore | 49 | Head | Salesman | New York |
| 4 | Elizabeth Moore | 56 | Sister | — | New York |
| 5 | Angelo Nicosia | 44 | Head | Longshore | Italy |
| 6 | Nancy Nicosia | 36 | Wife | — | New York |
| 7 | Nellie Nicosia | 16 | Daughter | New Worker | New York |
| 8 | John Clancy | 50 | Head | Fireman | New York |
| 9 | Mary Clancy THIS PERSON | 46 | Wife | — | New York |
| 10 | John Clancy | 21 | Son | New Worker | New York |
| 11 | Louis Kreuder | 41 | Head | Chauffeur | New Jersey |
| 12 | Claire Kreuder | 40 | Wife | — | New York |
| 13 | Irene Kreuder | 16 | Daughter | — | New York |
| 14 | Margaret Eberl | 75 | Mother-in-law | — | Germany |
| 15 | Adolfo Buono | 46 | Head | Barber | Italy |
| 16 | Ida Buono | 40 | Wife | Operator | Italy |
| 17 | Mary Buono | 24 | Daughter | — | New York |
| 18 | Josephine Buono | 15 | Daughter | — | New York |
| 19 | Michael Napolatano | 39 | Head | Driver | Italy |
| 20 | Carmela Napolatano | 36 | Wife | — | Italy |
| 21 | Vito Napolatano | 9 | Son | — | New York |
| 22 | Antoinette Napolatano | 6 | Daughter | — | New York |
| 23 | Giacomo Butrone | 12 | Niece | — | New York |
| 24 | Sylvester Serpe | 34 | Head | Salesman | Italy |
| 25 | Rosalie Serpe | 25 | Wife | — | New York |
| 26 | Maria Serpe | 4 | Daughter | — | New York |
| 27 | Raffaele Serpe | 1 | Son | — | New York |
| 28 | Dominick Ranieri | 54 | Head | Brush Maker | Italy |
| 29 | Frances Ranieri | 48 | Wife | — | Italy |
| 30 | Josephine Cama | 70 | Mother-in-law | — | Italy |
| 31 | Joseph Cama | 41 | Brother-in-law | Machinist | Italy |
| 32 | Steven Salmieri | 31 | Head | Printer | New York |
| 33 | Josephine Salmieri | 29 | Wife | — | New York |
| 34 | Sarah Salmieri | 3 | Daughter | — | New York |
| 35 | Salvatore Salmieri | 1 | Son | — | New York |
| 36 | John Costa | 44 | Head | Watchman | Italy |
| 37 | Laura Costa | 39 | Wife | — | Italy |
| 38 | Emanuel Costa | 14 | Son | — | New York |
| 39 | George Costa | 13 | Son | — | New York |
| 40 | Helen Costa | 11 | Daughter | — | 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)