JL
Joseph Leonard — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Union-County, New Jersey
Our Model Tree links this Joseph Leonard across the 1920, 1930 and 1940 US Censuses in Union-County, New Jersey (XGBoost, ~Confirmed) — first a head (b.~1887), then head of a 5-person household.
Age 53
b. ~1887
Male
Head
Born: Poland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Union-County, New Jersey |
| Surname | Leonard |
| Given Name | Joseph |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Poland |
| 1935 Residence (City) | Elizabeth |
| 1935 Residence (County) | Union |
| Naturalization Status | First papers filed |
| Additional Details | |
| Occupation | Tavern |
| Industry | Owner |
| Class of Worker | OA |
| Hours Worked | 30 |
| Income (1939) | 0 |
| Highest Grade | S 3 |
| 1935 Residence | Same house |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
| Occupation | Tavern |
| Township / Ward | Elizabeth |
| Est. Birth Year | ~1887 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Joseph | Age | Birth yr |
|---|---|---|---|---|
| Anthony Leonard | Son | — | 20 | ~1920 |
| Helen Leonard | Daughter | — | 23 | ~1917 |
| Catherine Leonard | Spouse | — | 51 | ~1889 |
| Joseph Leonard | Head | — | 53 | ~1887 |
| Josephine Leonard | Daughter | — | 18 | ~1922 |
Census Appearances
1920
Union, New …
Head, age 33
Union, New Jersey · implied b. ~1887 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Poland |
| Year of Immigration | 1905 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Occupation | Bartender |
| Industry | Saloon |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Polish |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
1930
Union, New …
Head, age 43
Union, New Jersey · implied b. ~1887 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Poland |
| Year of Immigration | 1914 |
| Age at First Marriage | 23 |
| Father's Birthplace | Poland |
| Mother's Birthplace | Poland |
| Occupation | Store Keeper |
| Industry | Confectionery |
| Class of Worker | OA |
| Can Read/Write | No |
| Mother Tongue | Polish |
| Home Owned/Rented | O |
| Home Value / Rent | 12000 |
| Radio Set | R |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
1940
Union-County, New …
Head, age 53
Union-County, New Jersey · implied b. ~1887 — 5 household members
| Surname | Leonard |
| Given Name | Joseph |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Poland |
| 1935 Residence (City) | Elizabeth |
| 1935 Residence (County) | Union |
| Naturalization Status | First papers filed |
| Occupation | Tavern |
| Industry | Owner |
| Class of Worker | OA |
| Hours Worked | 30 |
| Income (1939) | 0 |
| Highest Grade | S 3 |
| 1935 Residence | Same house |
| Birth Country | Poland |
| Birthplace (normalized) | poland |
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 Joseph Leonard across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Joseph Leonard
Head · 1940 · age 53 · b. ~1887 · New Jersey
★ 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 — Union-County, New Jersey
Open full size
1940 US Federal Census — Union-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02398-00224)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Richard Yonat | 8 | son | — | New Jersey |
| 42 | William Abat | 25 | head | Laundry | New Jersey |
| 43 | Ina Abat | 25 | wife | — | New Jersey |
| 44 | Frederick Abat | 3 | son | — | New Jersey |
| 45 | Ina Abat | 0 | daughter | — | New Jersey |
| 46 | — | None | — | — | — |
| 47 | — | None | — | — | — |
| 48 | Mary Mlynarczyk | 62 | head | — | Poland |
| 49 | Julia Mlynarczyk | 27 | daughter | Machine Operator | New Jersey |
| 50 | Stanley Mlynarczyk | 30 | son | Baker Helper | New Jersey |
| 51 | Ignatius Molliginski | 44 | head | Operator | Poland |
| 52 | Helen Molliginski | 44 | wife | — | Poland |
| 53 | Henry Molliginski | 22 | son | Machine Operator | New Jersey |
| 54 | Stephen Molliginski | 19 | son | Operator | New Jersey |
| 55 | Stanley Molliginski | 11 | son | — | New Jersey |
| 56 | Stanley Gladysz | 36 | head | Painter | Poland |
| 57 | Helen Gladysz | 33 | wife | — | New Jersey |
| 58 | Edward Gladysz | 10 | son | — | New Jersey |
| 59 | Josephine Gladysz | 8 | son | — | New Jersey |
| 60 | Stephanie Gladysz | 5 | daughter | — | New Jersey |
| 61 | Mary Mikulas | 45 | head | — | Poland |
| 62 | Helen Mikulas | 21 | daughter | Painter | New Jersey |
| 63 | Stanley Mikulas | 19 | son | Truck Driver | New Jersey |
| 64 | Stella Mikulas | 16 | daughter | — | New Jersey |
| 65 | Loretta Mikulas | 14 | daughter | — | New Jersey |
| 66 | Theresa Mikulas | 5 | daughter | — | New Jersey |
| 67 | Daniel Katz | 37 | head | Presser | Poland |
| 68 | Ada Katz | 35 | wife | — | New York |
| 69 | Gloria Katz | 11 | daughter | — | New York |
| 70 | Phyllis Katz | 5 | son | — | New York |
| 71 | Joseph Leonard THIS PERSON | 53 | head | Tavern | Poland |
| 72 | Catherine Leonard | 51 | wife | — | Poland |
| 73 | Anthony Leonard | 20 | son | — | New Jersey |
| 74 | Helen Leonard | 23 | daughter | Register Nurse | New Jersey |
| 75 | Josephine Leonard | 18 | daughter | — | New Jersey |
| 76 | — | None | — | — | — |
| 77 | John Lenard | 26 | head | Music Teacher | New Jersey |
| 78 | Mary Lenard | 24 | wife | — | New Jersey |
| 79 | Barbara Lenard | 3 | daughter | — | New Jersey |
| 80 | Walter Wojtowicz | 31 | head | Hand Trucker | Mass |
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)