JF
John Frost — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kings-County, New York
Our Model Tree links this John Frost across the 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 6-person household.
Age 13
b. ~1927
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | Frost |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Brooklyn N.Y. |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Highest Grade | No |
| 1935 Residence | Same Place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Township / Ward | Brooklyn Ny |
| Est. Birth Year | ~1927 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Evelyn Frost | Daughter | — | 22 | ~1918 |
| Lewis Frost | Head | — | 46 | ~1894 |
| Lewis Frost | Son | — | 18 | ~1922 |
| Gertrude Frost | Spouse | — | 44 | ~1896 |
| Gertrude Frost | Daughter | — | 10 | ~1930 |
| John Frost | Son | — | 13 | ~1927 |
Census Appearances
1930
Kings, New …
Son, age 2
Kings, New York · implied b. ~1928 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Frost |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Son, age 13
Kings-County, New York · implied b. ~1927 — 6 household members
| Surname | Frost |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Brooklyn N.Y. |
| 1935 Residence (County) | Kings |
| Highest Grade | No |
| 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 John Frost across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Frost
Son · 1940 · age 13 · b. ~1927 · New York
★ You are viewing this record
Sibling
Evelyn Frost
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lewis Frost
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gertrude Frost
Sibling · 1940 · age 10
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
39 people indexed on this census page (nara:1940:m-t0627-02576-00051)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Marie Mc Cormick | 22 | Daughter | Stenographer | New York |
| 42 | Joseph Jr. Mc Cormick | 19 | Son | — | New York |
| 43 | Jane Mc Cormick | 18 | Daughter | — | New York |
| 44 | George R. Hynes | 48 | Son-in-law | Secretary | New York |
| 45 | Frankie Hynes | 47 | Daughter | — | New York |
| 46 | Harry Hoffmann | 55 | Head | Chauffeur | New York |
| 47 | Annie Hoffmann | 52 | Wife | — | New York |
| 48 | Jean Hoffmann | 21 | Daughter | Typist | New York |
| 49 | William Daly | 46 | Head | Manager | New York |
| 50 | Edna Daly | 45 | Wife | — | New York |
| 51 | William Daly | 21 | Son | Chemist | New York |
| 52 | Edna Daly | 16 | Daughter | — | New York |
| 53 | Gerard Daly | 15 | Son | — | New York |
| 54 | Margaret Maguire | 55 | Sister-in-law | — | New York |
| 55 | Doris Maguire | 21 | Niece | Comptometer Opr. | New York |
| 56 | Edward Denby | 54 | Head | Vice President | Delaware |
| 57 | Elizabeth Denby | 45 | Wife | — | New York |
| 58 | Dorothy Denby | 22 | Daughter | Secretary | New York |
| 59 | David Denby | 15 | Son | — | New York |
| 60 | Harriet Denby | 12 | Daughter | — | New York |
| 61 | James Steel | 69 | Head | Accountant | Scotland |
| 62 | Sarah Steel | 70 | Wife | — | Scotland |
| 63 | Agnes Steel | 34 | Daughter | Teacher | New York |
| 64 | Esther Anderson | 21 | Maid | House Worker | Norway |
| 65 | Margaret Daly | 53 | Head | — | Pennsylvania |
| 66 | Angeline Daly | 55 | Sister | Teacher | Pennsylvania |
| 67 | Mary Daly | 49 | Sister | — | Pennsylvania |
| 68 | Lewis Frost | 46 | Head | Paymaster | New York |
| 69 | Gertrude Frost | 44 | Wife | — | New York |
| 70 | Evelyn Frost | 22 | Daughter | Typist | New York |
| 71 | Lewis Jr. Frost | 18 | Son | Office Worker | New York |
| 72 | John Frost THIS PERSON | 13 | Son | — | New York |
| 73 | Gertrude Frost | 10 | Daughter | — | New York |
| 74 | William Vredenburg | 63 | Head | Clerk | New York |
| 75 | A. E. Vredenburg | 52 | Wife | — | New York |
| 76 | Richard Horigan | 39 | Head | Clerk | Connecticut |
| 77 | Mary Horigan | 39 | Wife | — | New York |
| 78 | Patrick Murphy | 51 | Head | Agent | Ireland |
| 79 | Rose Mary Murphy | 21 | 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)