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John Mcelroy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Kings-County, New York
Our Model Tree links this John Mcelroy across the 1930 and 1940 US Censuses in Kings-County, New York (XGBoost, ~Confirmed) — first a head (b.~1904), then head of a 4-person household.
Age 36
b. ~1904
Male
Head
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Kings-County, New York |
| Surname | McElroy |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | Brooklyn |
| 1935 Residence (County) | Kings |
| Additional Details | |
| Occupation | Teller |
| Industry | Bank |
| Class of Worker | PW |
| Hours Worked | 53 |
| Income (1939) | 1600 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Teller |
| Township / Ward | Brooklyn |
| Est. Birth Year | ~1904 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Joan Mcelroy | Daughter | — | 3 | ~1937 |
| John Mcelroy | Head | — | 36 | ~1904 |
| Catherine Mcelroy | Spouse | — | 35 | ~1905 |
| Mary Mcelroy | Daughter | — | 5 | ~1935 |
Census Appearances
1930
Kings, New …
Head, age 25
Kings, New York · implied b. ~1905 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McElroy |
| Given Name | John Hanley |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | New York |
| Age at First Marriage | 22 |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | Salesman |
| Industry | Cotton Goods |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 45.00 |
| Radio Set | R |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Kings-County, New …
Head, age 36
Kings-County, New York · implied b. ~1904 — 4 household members
| Surname | McElroy |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | Brooklyn |
| 1935 Residence (County) | Kings |
| Occupation | Teller |
| Industry | Bank |
| Class of Worker | PW |
| Hours Worked | 53 |
| Income (1939) | 1600 |
| 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 John Mcelroy across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Mcelroy
Head · 1940 · age 36 · b. ~1904 · 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-t0627-02572-00796)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Elizabeth Edwards | 70 | Head | Housework | New York |
| 42 | Mary Edwards | 31 | Daughter | — | New York |
| 43 | Harry Karpas | 39 | Head | Waterproofing | New York |
| 44 | Sonia Karpas | 32 | Wife | — | Virginia |
| 45 | Richard Karpas | 3 | Son | — | New York |
| 46 | Dorothy Karpas | 1 | Daughter | — | New York |
| 47 | Carl Hansen | 52 | Head | Painter | Norway |
| 48 | Ragna Hansen | 47 | Wife | — | Norway |
| 49 | Roy Hansen | 17 | Son | — | New York |
| 50 | Franklin Burger | 38 | Head | Tool Maker | Germany |
| 51 | Rosa Burger | 34 | Wife | — | Germany |
| 52 | Raymond Burger | 12 | Son | — | New York |
| 53 | George Bower | 62 | Lodger | Watchman | Scotland |
| 54 | Gustave Johnson | 48 | Head | Clerk | New Jersey |
| 55 | Margaret Johnson | 41 | Daughter | Stenographer | Baltimore |
| 56 | Robert Johnson | 14 | Son | — | New York |
| 57 | Rosemary Johnson | 12 | Daughter | — | New York |
| 58 | Peter Johnson | 10 | Son | — | New York |
| 59 | Gregory Pitcher | 55 | Friend | Merchant | Latvia |
| 60 | Luigi Dattoma | 62 | Head | Ship Yard | Italy |
| 61 | Maria Dattoma | 56 | Wife | — | Italy |
| 62 | Anthony Dattoma | 33 | Son | Stock Clerk | New York |
| 63 | John Mcelroy THIS PERSON | 36 | Head | Teller | New York |
| 64 | Catherine Mcelroy | 35 | Wife | — | New York |
| 65 | Mary Mcelroy | 5 | Daughter | — | New York |
| 66 | Joan Mcelroy | 3 | Daughter | — | New York |
| 67 | William Schindler | 25 | Head | Clerk | New York |
| 68 | Frances Schindler | 23 | Wife | — | New York |
| 69 | William Bellotti | 27 | Head | Asst Manager | New York |
| 70 | Loretta Bellotti | 26 | Wife | — | New York |
| 71 | Florence Bellotti | 1 | Daughter | — | New York |
| 72 | Edna Hitchcock | 46 | Head | Bookkeeper | New Jersey |
| 73 | Clara Plummel | 21 | Lodger | Clerk | New Jersey |
| 74 | William Plummel | 45 | Lodger | Painter | Boston |
| 75 | George Bergmeier | 24 | Head | Salesman | New York |
| 76 | Helen Bergmeier | 23 | Wife | Salesgirl | New York |
| 77 | Otto Ottiger | 46 | Head | Warehouseman | Germany |
| 78 | Elsie Ottiger | 36 | Wife | — | Germany |
| 79 | Albert Ottiger | 8 | Son | — | New York |
| 80 | End Of Page | None | — | — | — |
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)