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John Mcelroy — 1940 US Census Record
Linked across censuses1940 United States Federal Census · New-York-County, New York
Our Model Tree links this John Mcelroy across the 1920, 1930 and 1940 US Censuses in New-York-County, New York (XGBoost, ~Confirmed) — first a head (b.~1895), then head of a 6-person household.
Age 45
b. ~1895
Male
Head
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | New-York-County, New York |
| Surname | McElroy |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | New York |
| Additional Details | |
| Occupation | Driver |
| Industry | Dairy Farm |
| Class of Worker | PW |
| Hours Worked | 25 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Driver |
| Township / Ward | New York City |
| Est. Birth Year | ~1895 |
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 |
|---|---|---|---|---|
| Mary Mcelroy | Daughter | — | 17 | ~1923 |
| Alice Mcelroy | Spouse | — | 41 | ~1899 |
| Alice Mcelroy | Daughter | — | 8 | ~1932 |
| Margaret Mcelroy | Daughter | — | 15 | ~1925 |
| John Mcelroy | Head | — | 45 | ~1895 |
| Edward Mcelroy | Son | — | 23 | ~1917 |
Census Appearances
1920
New York, …
Other, age 23
New York, New York · implied b. ~1897 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McElroy |
| Given Name | John |
| Relationship to Head | Nephew |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | New York |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Laborer |
| Industry | Dock |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
New York, …
Head, age 34
New York, New York · implied b. ~1896 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McElroy |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | New York |
| Age at First Marriage | 27 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Chauffeur |
| Industry | Dairy Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 40 |
| Radio Set | R |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
New-York-County, New …
Head, age 45
New-York-County, New York · implied b. ~1895 — 6 household members
| Surname | McElroy |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | New York City |
| 1935 Residence (County) | New York |
| Occupation | Driver |
| Industry | Dairy Farm |
| Class of Worker | PW |
| Hours Worked | 25 |
| Highest Grade | 8 |
| 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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Mcelroy
Head · 1940 · age 45 · b. ~1895 · New York
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — New-York-County, New York
Open full size
1940 US Federal Census — New-York-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02658-00177)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Anthony Trojan | 38 | Head | Laborer | New York |
| 42 | Anna Trojan | 20 | Sister | Worker | New York |
| 43 | Theresa Kading | 64 | Head | — | Germany |
| 44 | Eleanor Siedett | 21 | Grand-son | — | New York |
| 45 | John Riechen | 69 | Head | Machinist | Austria |
| 46 | Henry Wolabert | 63 | Partner | Porter | Germany |
| 47 | Sebastian Rothenberger | 76 | Head | — | Germany |
| 48 | Katie Rothenberger | 76 | Wife | — | Germany |
| 49 | Lina Arnold | 53 | Head | Nurse Practical | Germany |
| 50 | Christina Beile | 74 | Head | — | Austria |
| 51 | Katherine Cavanaugh | 58 | Head | — | Irish Free State |
| 52 | John Cavanaugh | 18 | Son | — | New York |
| 53 | John Mcelroy THIS PERSON | 45 | Head | Driver | New York |
| 54 | Alice Mcelroy | 41 | Wife | Matron | New York |
| 55 | Edward Mcelroy | 23 | Son | Elevator Operator | New York |
| 56 | Mary Mcelroy | 17 | Daughter | — | New York |
| 57 | Margaret Mcelroy | 15 | Daughter | — | New York |
| 58 | Alice Mcelroy | 8 | Daughter | — | New York |
| 59 | George Jr. Strohm | 69 | Head | — | New York |
| 60 | Lillie Strohm | 67 | Wife | — | Germany |
| 61 | Ernest Rischer | 37 | Head | Elevator Operator | Germany |
| 62 | Mary Rischer | 31 | Wife | — | Hungary |
| 63 | Rudolph Rischer | 2 | Son | — | New York |
| 64 | Charles Neureiter | 73 | Head | — | Germany |
| 65 | Adelaide Neureiter | 64 | Wife | — | Germany |
| 66 | William Neureiter | 15 | Grand-son | — | New York |
| 67 | Louis Neureiter | 13 | Grand-son | — | New York |
| 68 | Antoinette Fund | 46 | Head | Lunchroom | Germany |
| 69 | Marie Fund | 20 | Daughter | Stenographer | New York |
| 70 | Arthur H. Burke | 36 | Head | Printer | New York |
| 71 | Katherine Burke | 40 | Wife | — | New York |
| 72 | Katherine C. Burke | 11 | Daughter | — | New York |
| 73 | James J. Lynch | 42 | Head | Porter | Pennsylvania |
| 74 | Alice Lynch | 39 | Wife | — | Irish Free State |
| 75 | Vincent Lynch | 14 | Son | — | New York |
| 76 | George Mary Eley | 63 | Head | — | Hungary |
| 77 | Rose Lukash | 52 | Head | Janitor | New York |
| 78 | Evelyn C. Lukash | 23 | Daughter | Chamber-Maid | New York |
| 79 | Herbert Lukash | 21 | Son | Chamber-Maid | New York |
| 80 | Emma Lukash | 19 | Daughter | Sprayer | New York |
Related Census Records
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)