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Mary Tracy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kings-County, New York
Our Model Tree links this Mary Tracy across the 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 7-person household.
Age 10
b. ~1930
Female
Daughter
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Tracy |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Highest Grade | 6 |
| 1935 Residence | Same House |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Township / Ward | New York City |
| Est. Birth Year | ~1930 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Helen Tracy | Spouse | — | 40 | ~1900 |
| Gerald Tracy | Son | — | 4 | ~1936 |
| Richard Tracy | Son | — | 3 | ~1937 |
| Margaret Tracy | Daughter | — | 11 | ~1929 |
| Patrick Tracy | Head | — | 41 | ~1899 |
| Timothy Tracy | Son | — | 2 | ~1938 |
| Mary Tracy | Daughter | — | 10 | ~1930 |
Census Appearances
1930
Kings, New …
Daughter, age
Kings, New York · implied b. ~1930 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Tracy |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | N. Ireland |
| Mother's Birthplace | N. Ireland |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Daughter, age 10
Kings-County, New York · implied b. ~1930 — 7 household members
| Surname | Tracy |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | Kings |
| Highest Grade | 6 |
| 1935 Residence | Same House |
| 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 Tracy across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Tracy
Daughter · 1940 · age 10 · b. ~1930 · New York
★ You are viewing this record
Sibling
Margaret Tracy
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gerald Tracy
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Tracy
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Timothy Tracy
Sibling · 1940 · age 2
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 — 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-t0627-02568-00824)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Emily Kelly | 36 | Head | Bookbinder | New York |
| 42 | George Kelly | 14 | Son | — | New York |
| 43 | Cecelia Kelly | 13 | Daughter | — | New York |
| 44 | Sadie Hannan | 38 | Sister | Bookbinder | New York |
| 45 | Joseph Durney | 45 | Head | Electrician | New York |
| 46 | Nellie Durney | 45 | Wife | — | New York |
| 47 | Harry Simon | 47 | Head | Wood Heeler | Syria |
| 48 | Selma Simon | 35 | Wife | — | Syria |
| 49 | Lucille Simon | 24 | Daughter | — | New York |
| 50 | Richard Simon | 18 | Son | Wood Heeler | New York |
| 51 | William Allen | 48 | Head | Laborer | New York |
| 52 | Margaret Allen | 52 | Wife | — | New York |
| 53 | Rita Allen | 14 | Daughter | — | New York |
| 54 | Joseph Fitzsimmons | 27 | Stepson | Laborer | New York |
| 55 | Patrick Murphy | 51 | Head | Custodian | Irish Free State |
| 56 | Helen Murphy | 50 | Wife | — | Irish Free State |
| 57 | Josephine Murphy | 17 | Daughter | — | New York |
| 58 | Eileen Murphy | 15 | Daughter | — | New York |
| 59 | Kathleen Murphy | 13 | Daughter | — | New York |
| 60 | John Murphy | 11 | Son | — | New York |
| 61 | Patricia Murphy | 8 | Daughter | — | New York |
| 62 | Daniel Barry | 63 | Head | Engineer | Irish Free State |
| 63 | Susanne Barry | 58 | Wife | — | New York |
| 64 | Harold Barry | 32 | Son | Checker | New York |
| 65 | Clifford Barry | 19 | Son | Messenger | New York |
| 66 | Ellen Kennedy | 51 | Head | — | Irish Free State |
| 67 | John Kennedy | 22 | Son | Elevator Oper | New York |
| 68 | Thomas Kennedy | 19 | Son | Laborer | New York |
| 69 | Lawrence Coyke | 40 | Lodger | Bartender | New York |
| 70 | Patrick Tracy | 41 | Head | Helper | Irish Free State |
| 71 | Helen Tracy | 40 | Wife | — | Irish Free State |
| 72 | Margaret Tracy | 11 | Daughter | — | New York |
| 73 | Mary Tracy THIS PERSON | 10 | Daughter | — | New York |
| 74 | Gerald Tracy | 4 | Son | — | New York |
| 75 | Richard Tracy | 3 | Son | — | New York |
| 76 | Timothy Tracy | 2 | Son | — | New York |
| 77 | Peter Diprima | 65 | Head | — | Italy |
| 78 | Peter Jr. Diprima | 25 | Son | Cashier | New York |
| 79 | Grace Diprima | 25 | Daughter | — | New York |
| 80 | Joseph Diprima | 18 | 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)