MD
Mary Davidson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kings-County, New York
Our Model Tree links this Mary Davidson across the 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed) — first a spouse (b.~1889), then head of a 8-person household.
Age 51
b. ~1889
Female
Spouse
Born: Egypt
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Davidson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Egypt |
| 1935 Residence (City) | Brooklyn N.Y.C. |
| 1935 Residence (County) | Kings |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birthplace (normalized) | egypt |
| Township / Ward | Brooklyn Nyc |
| Est. Birth Year | ~1889 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Laura Davidson | Daughter | — | 15 | ~1925 |
| Alice Davidson | Daughter | — | 17 | ~1923 |
| Elizabeth Davidson | Daughter | — | 25 | ~1915 |
| Beatrice Davidson | Daughter | — | 21 | ~1919 |
| Edward Davidson | Head | — | 54 | ~1886 |
| Maurice Davidson | Son | — | 19 | ~1921 |
| Edward Davidson | Son | — | 28 | ~1912 |
| Mary Davidson | Spouse | — | 51 | ~1889 |
Census Appearances
1930
Kings, New …
Spouse, age 41
Kings, New York · implied b. ~1889 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davidson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Egypt |
| Naturalization Status | First papers filed |
| Year of Immigration | 1928 |
| Age at First Marriage | 20 |
| Father's Birthplace | Russia |
| Mother's Birthplace | Russia |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | Yiddish |
| Birthplace (normalized) | egypt |
1940
Kings-County, New …
Spouse, age 51
Kings-County, New York · implied b. ~1889 — 8 household members
| Surname | Davidson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Egypt |
| 1935 Residence (City) | Brooklyn N.Y.C. |
| 1935 Residence (County) | Kings |
| Naturalization Status | Naturalized |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birthplace (normalized) | egypt |
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 Davidson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Davidson
Spouse · 1940 · age 51 · b. ~1889 · 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
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1940 US Federal Census — Kings-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02570-00078)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jerry Guthrie | 35 | Head | Bricklayer | New York |
| 2 | Catherine Mollmore | 65 | Head | Housekeeper | New York |
| 3 | Gerald Mollmore | 34 | Son | Operator | New York |
| 4 | Rose Mollmore | 32 | Daughter | Operator | New York |
| 5 | Helen Mollmore | 30 | Daughter | Saleswoman | New York |
| 6 | Marion Mollmore | 25 | Daughter | Cashier | New York |
| 7 | Catherine Mollmore | 23 | Daughter | Cashier | New York |
| 8 | Margaret Mollmore | 20 | Daughter | Cashier | New York |
| 9 | Elizabeth Mollmore | 33 | Daughter | Supervisor | New York |
| 10 | John Silvestri | 40 | Head | Superintendent | New York |
| 11 | Antoinette Silvestri | 40 | Wife | — | Italy |
| 12 | Marie Silvestri | 13 | Daughter | — | New York |
| 13 | John Silvestri | 11 | Son | — | New York |
| 14 | Rose Dorso | 42 | Sister-in-law | — | New York |
| 15 | Edward Davidson | 54 | Head | Brassworker | Egypt |
| 16 | Mary Davidson THIS PERSON | 51 | Wife | — | Egypt |
| 17 | Edward Davidson | 28 | Son | Buyer Co | New York |
| 18 | Elizabeth Davidson | 25 | Daughter | Millinery | New York |
| 19 | Beatrice Davidson | 21 | Daughter | Operator | New York |
| 20 | Maurice Davidson | 19 | Son | Clerk | New York |
| 21 | Alice Davidson | 17 | Daughter | — | New York |
| 22 | Laura Davidson | 15 | Daughter | — | New York |
| 23 | Thomas Maggio | 50 | Head | Stenotype | New York |
| 24 | Mildred Maggio | 45 | Wife | — | New York |
| 25 | Nancy Maggio | 23 | Daughter | Clerk | New York |
| 26 | Thomas Maggio | 20 | Son | Salesboy | New York |
| 27 | Frances Maggio | 18 | Daughter | Saleslady | New York |
| 28 | Joseph Maggio | 16 | Son | — | New York |
| 29 | Josephine Maggio | 13 | Daughter | — | New York |
| 30 | Joseph Deira | 49 | Head | Candy Maker | Italy |
| 31 | Elizabeth Deira | 38 | Wife | — | Italy |
| 32 | Mary Deira | 21 | Daughter | Candy Maker | New York |
| 33 | Natalie Deira | 14 | Daughter | — | New York |
| 34 | Joseph Deira | 11 | Son | — | New York |
| 35 | Pasquale Castellano | 55 | Head | Pressman | Italy |
| 36 | Frank Castellano | 31 | Son | Draftsman | New York |
| 37 | Margaret Castellano | 27 | Daughter | Clerk | New York |
| 38 | Louis Castellano | 26 | Son | Assistant | New York |
| 39 | William Castellano | 23 | Son | New Worker | New York |
| 40 | Rudolph Castellano | 20 | Son | New Worker | 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)