MG
Mary Grace — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kings-County, New York
Our Model Tree links this Mary Grace across the 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed) — first a daughter (b.~1920), then head of a 6-person household.
Age 20
b. ~1920
Female
Daughter
Born: South Carolina
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Grace |
| Given Name | Mary Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Brooklyn |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Occupation | Saleswoman |
| Industry | Dept Store |
| Class of Worker | PW |
| Income (1939) | 431 |
| Highest Grade | C 2 |
| 1935 Residence | Same place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Occupation | Saleswoman |
| Township / Ward | Brooklyn |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Michel Grace | Head | — | 53 | ~1887 |
| William Grace | Son | — | 8 | ~1932 |
| Agnes Grace | Spouse | — | 42 | ~1898 |
| Mary Grace | Daughter | — | 20 | ~1920 |
| James Grace | Son | — | 17 | ~1923 |
| Henry Grace | Son | — | 19 | ~1921 |
Census Appearances
1930
Kings, New …
Daughter, age 11
Kings, New York · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Grace |
| Given Name | Mary J |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | New York |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Kings-County, New …
Daughter, age 20
Kings-County, New York · implied b. ~1920 — 6 household members
| Surname | Grace |
| Given Name | Mary Jane |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | South Carolina |
| 1935 Residence (City) | Brooklyn |
| 1935 Residence (County) | Kings |
| Occupation | Saleswoman |
| Industry | Dept Store |
| Class of Worker | PW |
| Income (1939) | 431 |
| Highest Grade | C 2 |
| 1935 Residence | Same place |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
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 Grace across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Grace
Daughter · 1940 · age 20 · b. ~1920 · New York
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Sibling
Henry Grace
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Grace
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Grace
Sibling · 1940 · age 17
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-t0627-02575-00205)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lenora Lennox | 41 | Daughter | — | Philadelphia |
| 42 | Arlene Lennox | 5 | Daughter | — | Paterson |
| 43 | Salvatore Bares | 56 | Head | Salesman | Italy |
| 44 | Catherine Bares | 50 | Wife | — | New York |
| 45 | Edward Bares | 30 | Son | Ironlayer | New York |
| 46 | Angela Bares | 24 | Daughter | — | New York |
| 47 | Russo, Anthony Bares | 5 | Grandson | — | New York |
| 48 | David Codren | 65 | Head | — | New York |
| 49 | Norman Codren | 33 | Son | Salesman | New York |
| 50 | Henry Feinberg | 65 | Head | Salesman | New York |
| 51 | Blanche Feinberg | 31 | Daughter | Teacher | New York |
| 52 | Gladys Feinberg | 25 | Daughter | File Clerk | New York |
| 53 | Murray Feinberg | 26 | Son | Chemist | New York |
| 54 | Beatrice Stevenson | 65 | Head | Practical Nurse | Ireland |
| 55 | Michel J. Grace | 53 | Head | Proof Reader | South Carolina |
| 56 | Agnes V. Grace | 42 | Wife | — | New York |
| 57 | Mary Jane Grace THIS PERSON | 20 | Daughter | Saleswoman | South Carolina |
| 58 | Henry A. Grace | 19 | Son | — | South Carolina |
| 59 | James J. Grace | 17 | Son | — | South Carolina |
| 60 | William D. Grace | 8 | Son | — | New York |
| 61 | Arthur A. Tilton | 64 | Head | Tally Clerk | New York |
| 62 | Anne D. Tilton | 60 | Wife | — | New York |
| 63 | Grace R. Henry | 61 | Sister-in-law | Weaver | New York |
| 64 | Henry | 63 | Head | — | Italy |
| 65 | Joseph Barbarini | 63 | Head | Elevator Operator | Italy |
| 66 | Grace Barbarini | 26 | Daughter | Needleworker | New York |
| 67 | Madeline Barbarini | 22 | Daughter | Saleslady | New York |
| 68 | Julia Barbarini | 24 | Daughter | — | New York |
| 69 | Louis Barbarini | 27 | Son | Instructor | New York |
| 70 | Leo Barbarini | 24 | Son | File Clerk | New York |
| 71 | Douglas Barbarini | 22 | Son | Shipping Clerk | New York |
| 72 | Frank De Rosa | 51 | Head | Coffee Merchant | Italy |
| 73 | Lillian De Rosa | 41 | Wife | — | Italy |
| 74 | Adele De Rosa | 15 | Daughter | — | New York |
| 75 | Frank De Rosa | 6 | Son | — | New York |
| 76 | Bernard Dilley | 29 | Head | Policeman | Mass. |
| 77 | Genevieve Dilley | 27 | Wife | — | New York |
| 78 | Cornelius Dilley | 4 | Son | — | New York |
| 79 | Genevieve Dilley | 0 | Daughter | — | New York |
| 80 | James Cous | 51 | Head | Engineer | 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)