JL
John Leonard — 1930 US Census Record
Linked across censuses1930 United States Federal Census · New York, New York
Our Model Tree links this John Leonard across the 1900, 1910, 1920 and 1930 US Censuses in New York, New York (XGBoost, ~Confirmed) — first a head (b.~1854), then head of a 6-person household.
Age 76
b. ~1854
Male
Head
Born: Ireland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | New York, New York |
| Surname | Leonard |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 76 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1886 |
| Age at First Marriage | 25 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Retired |
| Can Read/Write | Yes |
| Mother Tongue | Eng |
| Home Owned/Rented | R |
| Home Value / Rent | 33 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Retired |
| Township / Ward | New York |
| Est. Birth Year | ~1854 |
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 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Theresa Leonard | Daughter | — | 25 | ~1905 |
| John Leonard | Head | — | 76 | ~1854 |
| William Leonard | Other | — | 4 | ~1926 |
| William Leonard | Son | — | 36 | ~1894 |
| Thomas Leonard | Son | — | 35 | ~1895 |
| Mary Leonard | Spouse | — | 57 | ~1873 |
Census Appearances
1900
New York, …
Head, age 45
New York, New York · implied b. ~1855 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Ireland |
| Birth Month | June |
| Birth Year | 1855 |
| Year of Immigration | 1867 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Peddler |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1910
New York, …
Head, age 55
New York, New York · implied b. ~1855 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Ireland |
| Years Married | 8 |
| Year of Immigration | 1880 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Harnessmaker |
| Industry | Shop |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
New York, …
Head, age 65
New York, New York · implied b. ~1855 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1882 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Harness Maker |
| Industry | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1888 |
| Birthplace (normalized) | ireland |
1930
New York, …
Head, age 76
New York, New York · implied b. ~1854 — 6 household members
| Surname | Leonard |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 76 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1886 |
| Age at First Marriage | 25 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Retired |
| Can Read/Write | Yes |
| Mother Tongue | Eng |
| Home Owned/Rented | R |
| Home Value / Rent | 33 |
| Radio Set | R |
| Veteran | No |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Leonard across 4 US Census years (1900, 1910, 1920 and 1930) in New York, New York, using XGBoost record linkage.
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This person
Anchor record
John Leonard
Head · 1930 · age 76 · b. ~1854 · New York
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — New York, New York
Open full size
1930 US Federal Census — New York, New York
Page Contents
50 people indexed on this census page (ia:1930:newyorkcensus00reel1548:0158)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Bernard Glennon | 40 | Head | Building Supt | New York |
| 52 | Nora Glennon | 45 | Wife | None | Ireland |
| 53 | John Lubben | 20 | Step Son | Clerk | New York |
| 54 | Mary Lubben | 18 | Step daughter | Factory | New York |
| 55 | Patrick Lubben | 12 | Step Son | Bell Boy | New York |
| 56 | Patrick Hayes | 62 | Head | Unemployed | Ireland |
| 57 | Catherine Hayes | 63 | Wife | Unemployed | Ireland |
| 58 | Rita Hayes | 29 | Daughter | Unemployed | New York |
| 59 | Anna Hayes | 21 | Daughter | Typist | New York |
| 60 | Lillie Redmond | 42 | Head | None | New York |
| 61 | John Redmond | 26 | Son | Unloader | New York |
| 62 | Stella Redmond | 18 | Daughter | Packer | New York |
| 63 | Robert Redmond | 16 | Son | None | New York |
| 64 | Emily Redmond | 10 | Daughter | — | New York |
| 65 | Florence Delaney | 19 | Daughter | Unemployed | New York |
| 66 | Gloria Delaney | 1 | Granddaughter | — | New York |
| 67 | John F. Landy | 35 | Head | Unemployed | New York |
| 68 | Margaret Landy | 32 | Wife | None | New York |
| 69 | Margaret Landy | 10 | Daughter | — | New York |
| 70 | Frances Landy | 6 | Daughter | — | New York |
| 71 | Marie Landy | 5 | Daughter | — | New York |
| 72 | Joan Landy | 2 | Daughter | — | New York |
| 73 | Timothy Melland | 40 | Head | Laborer | Ireland |
| 74 | Nora Melland | 30 | Wife | None | Ireland |
| 75 | Margaret Melland | 1 | Daughter | — | New York |
| 76 | James Mullen | 46 | Head | Unemployed | Ireland |
| 77 | James Mullen | 18 | Son | Clerk | New York |
| 78 | Michael Mullen | 17 | Son | Clerk | New York |
| 79 | Cornelius Flynn | 60 | Head | None | New York |
| 80 | Elizabeth Flynn | 53 | Wife | — | New York |
| 81 | Thomas Hart | 27 | Head | Laborer | New York |
| 82 | Elizabeth Hart | 25 | Wife | None | New York |
| 83 | Cornelius Dever | 48 | Head | Tallyman | Ireland |
| 84 | Nellie Dever | 47 | Wife | None | New York |
| 85 | John Dever | 17 | Son | Butcher | New York |
| 86 | Cornelius Dever | 15 | Son | Timekeeper | New York |
| 87 | Alice Dever | 11 | Daughter | None | New York |
| 88 | Catherine Dever | 14 | Daughter | None | New York |
| 89 | James Gleason | 26 | Step Son | Chauffeur | New York |
| 90 | Michael Mclaughlin | 60 | Head | Laborer | Ireland |
| 91 | Pauline Mclaughlin | 57 | Wife | None | New Jersey |
| 92 | Charles Marchel | 59 | Head | Baker | Germany |
| 93 | Minnie Marchel | 51 | Wife | None | England |
| 94 | John Leonard THIS PERSON | 76 | Head | Retired | Ireland |
| 95 | Mary Leonard | 57 | Wife | None | Ireland |
| 96 | Theresa Leonard | 25 | Daughter | Clerk | New York |
| 97 | Thomas Leonard | 35 | Son | None | New York |
| 98 | William Leonard | 36 | Son | Agent | New York |
| 99 | William Leonard | 4 | Grandson | None | New York |
| 100 | — | None | — | — | — |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)