MC
Mary Clancy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · New-York-County, New York
Our Model Tree links this Mary Clancy across the 1930 and 1940 US Censuses in New-York-County, New York (XGBoost, ~Confirmed) — first a daughter (b.~1920), then head of a 10-person household.
Age 20
b. ~1920
Female
Daughter
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | New-York-County, New York |
| Surname | Clancy |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York |
| 1935 Residence (County) | New York |
| Additional Details | |
| Occupation | Salesgirl |
| Industry | Cushman's |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 800 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Salesgirl |
| Township / Ward | New York |
| Est. Birth Year | ~1920 |
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 |
|---|---|---|---|---|
| Doris Parker | Other | — | 25 | ~1915 |
| Mary Clancy | Spouse | — | 51 | ~1889 |
| James Clancy | Son | — | 22 | ~1918 |
| Patrick Clancy | Head | — | 52 | ~1888 |
| Lila Dinetti | Other | — | 25 | ~1915 |
| Carlos De Fine | Other | — | 10 | ~1930 |
| Catharine Clancy | Daughter | — | 19 | ~1921 |
| Mary Clancy | Daughter | — | 20 | ~1920 |
| Patricia Clancy | Daughter | — | 12 | ~1928 |
| Carlos De Fine | Other | — | 36 | ~1904 |
Census Appearances
1930
New York, …
Other, age 10
New York, New York · implied b. ~1920 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clancy |
| Given Name | Mary |
| Relationship to Head | D |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
New-York-County, New …
Daughter, age 20
New-York-County, New York · implied b. ~1920 — 10 household members
| Surname | Clancy |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York |
| 1935 Residence (County) | New York |
| Occupation | Salesgirl |
| Industry | Cushman's |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 800 |
| Highest Grade | H-4 |
| 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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Clancy
Daughter · 1940 · age 20 · b. ~1920 · New York
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Sibling
James Clancy
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Clancy
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catharine Clancy
Sibling · 1940 · age 19
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-t0627-02668-00562)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alexis Wycoff | 42 | roomer | Carpenter | Russia |
| 2 | Caroline Wycoff | 30 | roomer | Secretary | Poland |
| 3 | Arthur Adams | 35 | roomer | Salesman | Greece |
| 4 | Thomas Adams | 40 | roomer | Salesman | Greece |
| 5 | Anthony Lopez | 40 | roomer | Waiter | Spain |
| 6 | Elizabeth Lopez | 40 | roomer | Waitress | Italy |
| 7 | Walter Moreno | 38 | head | Superintendent | Germany |
| 8 | Hermine Moreno | 28 | wife | Housewife | Germany |
| 9 | Roberta Moreno | 0 | daughter | — | New York |
| 10 | George Buck | 26 | head | Mechanic | Virginia |
| 11 | Leola Buck | 25 | roomer | — | Virginia |
| 12 | George Buck | 7 | roomer | — | Virginia |
| 13 | Eugene Hirsch | 57 | roomer | Customs House | Germany |
| 14 | Gertrude Hirsch | 34 | roomer | Operator | Germany |
| 15 | Fred Seal | 39 | roomer | Mechanic | England |
| 16 | Leona Seal | 37 | roomer | — | Ohio |
| 17 | William Benner | 45 | roomer | Operator | New York |
| 18 | Mary Benner | 46 | roomer | — | Michigan |
| 19 | Richard Marting | 50 | roomer | Cigar Maker | Cuba |
| 20 | Betty Marting | 38 | roomer | Saleswoman | Costa Rica |
| 21 | Patrick Clancy | 52 | head | Inspector | Ireland |
| 22 | Mary Clancy | 51 | wife | — | Ireland |
| 23 | James Clancy | 22 | son | New Worker | New York |
| 24 | Mary Clancy THIS PERSON | 20 | daughter | Salesgirl | New York |
| 25 | Catharine Clancy | 19 | daughter | New Worker | New York |
| 26 | Patricia Clancy | 12 | daughter | — | New York |
| 27 | Carlos De Fine | 36 | roomer | Elevator Oper. | Spain |
| 28 | Carlos De Fine | 10 | roomer | — | New York |
| 29 | Doris Parker | 25 | roomer | Salesgirl | Florida |
| 30 | Lila Dinetti | 25 | roomer | New Worker | Puerto Rico |
| 31 | Henry Youngling | 72 | head | — | New York |
| 32 | Mary Youngling | 70 | wife | — | New York |
| 33 | Frederick Youngling | 40 | son | Asst. Cashier | New York |
| 34 | Emily Firth | 81 | head | — | New York |
| 35 | Seth Firth | 83 | husband | — | New York |
| 36 | Emily Firth | 48 | daughter | — | New York |
| 37 | John Nancy | 56 | head | Plumber | New York |
| 38 | Mary Nancy | 54 | daughter | — | New York |
| 39 | John Nancy | 21 | son | Clerk | New York |
| 40 | Ruth Nancy | 15 | grand-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)