JL
John Leonard — 1940 US Census Record
Model Tree available1940 United States Federal Census · Luzerne-County, Pennsylvania
Our Model Tree links this John Leonard across the 1920, 1930 and 1940 US Censuses in Luzerne-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Edward & Katherine — first a head (b.~1907), then head of a 5-person household.
Age 33
b. ~1907
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Luzerne-County, Pennsylvania |
| Surname | Leonard |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Larksville Borough |
| 1935 Residence (County) | Luzerne |
| Additional Details | |
| Occupation | Coal Laborer |
| Industry | Coal Mine |
| Class of Worker | PW |
| Hours Worked | 21 |
| Income (1939) | 650 |
| Highest Grade | No 7 |
| 1935 Residence | Same House |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Coal Laborer |
| Township / Ward | Larksville Borough |
| Est. Birth Year | ~1907 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Marie Leonard | Daughter | — | 4 | ~1936 |
| Bernadine Leonard | Daughter | — | 1 | ~1939 |
| Louise Leonard | Daughter | — | 10 | ~1930 |
| John Leonard | Head | — | 33 | ~1907 |
| Mary Leonard | Spouse | — | 30 | ~1910 |
Census Appearances
1920
Luzerne, Pennsylvania
Son, age 14
Luzerne, Pennsylvania · implied b. ~1906 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Scotland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Luzerne, Pennsylvania
Head, age 24
Luzerne, Pennsylvania · implied b. ~1906 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | John M. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 20 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Scotland |
| Occupation | Laborer |
| Industry | Coal Mine |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | $25.00 |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Luzerne-County, Pennsylvania
Head, age 33
Luzerne-County, Pennsylvania · implied b. ~1907 — 5 household members
| Surname | Leonard |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Larksville Borough |
| 1935 Residence (County) | Luzerne |
| Occupation | Coal Laborer |
| Industry | Coal Mine |
| Class of Worker | PW |
| Hours Worked | 21 |
| Income (1939) | 650 |
| Highest Grade | No 7 |
| 1935 Residence | Same House |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Edward Leonard (~0.92 confidence) and mother Katherine Leonard (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Edward Leonard
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Katherine Leonard
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Leonard
Head · 1940 · age 33 · b. ~1907 · Pennsylvania
★ 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 — Luzerne-County, Pennsylvania
Open full size
1940 US Federal Census — Luzerne-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03555-00569)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Julia Drabinick | 57 | Head | — | Czechoslovakia |
| 42 | Michael Drabinick | 29 | Son | Mason | Pennsylvania |
| 43 | Margaret Drabinick | 20 | Daughter | — | Pennsylvania |
| 44 | Vincent Gunick | 27 | Head | Day Worker | Pennsylvania |
| 45 | Elizabeth Gunick | 24 | Wife | Laborer | Pennsylvania |
| 46 | Betty Gunick | 5 | Daughter | — | Pennsylvania |
| 47 | Edward Modrovsky | 35 | Head | Coal Miner | Pennsylvania |
| 48 | Verna Modrovsky | 36 | Wife | — | Pennsylvania |
| 49 | Thomas Modrovsky | 12 | Son | — | Pennsylvania |
| 50 | Edward Modrovsky | 9 | Son | — | Pennsylvania |
| 51 | Joan Modrovsky | 6 | Daughter | — | Pennsylvania |
| 52 | John Kopiak | 30 | Head | Coal Laborer | Pennsylvania |
| 53 | Catherine Kopiak | 30 | Wife | — | Pennsylvania |
| 54 | Joseph Drabinick | 34 | Head | Coal Laborer | Pennsylvania |
| 55 | Mary Drabinick | 26 | Wife | — | Pennsylvania |
| 56 | Nancy Drabinick | 3 | Daughter | — | Pennsylvania |
| 57 | Joan Drabinick | 2 | Daughter | — | Pennsylvania |
| 58 | George Good | 31 | Head | Coal Mason | Pennsylvania |
| 59 | Julia Good | 27 | Wife | — | Pennsylvania |
| 60 | Robert Good | 8 | Son | — | Pennsylvania |
| 61 | Florence Good | 4 | Daughter | — | Pennsylvania |
| 62 | Andrew Casper | 68 | Head | — | Czechoslovakia |
| 63 | Susan Casper | 67 | Wife | — | Czechoslovakia |
| 64 | George Casper | 41 | Son | — | Pennsylvania |
| 65 | Mary Casper | 38 | Daughter | — | Pennsylvania |
| 66 | Eleanor Casper | 14 | Daughter | New Worker | Pennsylvania |
| 67 | George Casper | 11 | Son | — | Pennsylvania |
| 68 | Rose Marie Casper | 8 | Daughter | — | Pennsylvania |
| 69 | John Leonard THIS PERSON | 33 | Head | Coal Laborer | Pennsylvania |
| 70 | Mary Leonard | 30 | Wife | — | Pennsylvania |
| 71 | Louise Leonard | 10 | Daughter | — | Pennsylvania |
| 72 | Marie Leonard | 4 | Daughter | — | Pennsylvania |
| 73 | Bernadine Leonard | 1 | Daughter | — | Pennsylvania |
| 74 | John Chewey | 64 | Head | — | Czechoslovakia |
| 75 | Anna Chewey | 57 | Wife | — | Czechoslovakia |
| 76 | William Chewey | 27 | Son | — | Pennsylvania |
| 77 | Margaret Chewey | 27 | Daughter | — | Pennsylvania |
| 78 | Pauline Chewey | 19 | Daughter | New Worker | Pennsylvania |
| 79 | Benjamin Modrovsky | 24 | Head | New Worker | Pennsylvania |
| 80 | John Modrovsky | 22 | Brother | Coal Laborer | Pennsylvania |
Pedigree Summary
John
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
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)