JL
John Lucas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Trumbull-County, Ohio
Our Model Tree links this John Lucas across the 1920, 1930 and 1940 US Censuses in Trumbull-County, Ohio (XGBoost, ~Confirmed) — first a head (b.~1876), then head of a 3-person household.
Age 64
b. ~1876
Male
Head
Born: Hungary
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Trumbull-County, Ohio |
| Surname | Lucas |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Hungary |
| 1935 Residence (City) | Niles City |
| 1935 Residence (County) | Trumbull |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Carpenter |
| Industry | Englewood Co. |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 308 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Hungary |
| Birthplace (normalized) | hungary |
| Occupation | Carpenter |
| Township / Ward | Niles City |
| Est. Birth Year | ~1876 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Irene Irene | Daughter | — | 30 | ~1910 |
| John Lucas | Head | — | 64 | ~1876 |
| Priscilla Lucas | Spouse | — | 58 | ~1882 |
Census Appearances
1920
Trumbull, Ohio
Head, age 44
Trumbull, Ohio · implied b. ~1876 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lucas |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Hungary |
| Year of Immigration | 1901 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Hungary |
| Mother's Birthplace | Hungary |
| Occupation | Carpenter |
| Industry | House |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Magyar |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Hungary |
| Year of Naturalization | 1918 |
| Birthplace (normalized) | hungary |
1930
Trumbull, Ohio
Head, age 53
Trumbull, Ohio · implied b. ~1877 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lucas |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Hungary |
| Naturalization Status | Naturalized |
| Year of Immigration | 1901 |
| Age at First Marriage | 22 |
| Father's Birthplace | Hungary |
| Mother's Birthplace | Hungary |
| Occupation | Carpenter |
| Industry | Building Contractor |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Magyar |
| Home Owned/Rented | O |
| Home Value / Rent | 3700 |
| Radio Set | R |
| Birth Country | Hungary |
| Birthplace (normalized) | hungary |
1940
Trumbull-County, Ohio
Head, age 64
Trumbull-County, Ohio · implied b. ~1876 — 3 household members
| Surname | Lucas |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Hungary |
| 1935 Residence (City) | Niles City |
| 1935 Residence (County) | Trumbull |
| Naturalization Status | Naturalized |
| Occupation | Carpenter |
| Industry | Englewood Co. |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 308 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Hungary |
| Birthplace (normalized) | hungary |
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 Lucas 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 Lucas
Head · 1940 · age 64 · b. ~1876 · Ohio
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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 — Trumbull-County, Ohio
Open full size
1940 US Federal Census — Trumbull-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03159-00261)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward L. Vampel | 38 | Head | Clerk | Pennsylvania |
| 2 | Catherine Vampel | 30 | Wife | — | Ohio |
| 3 | Evelyn Whittaker | 32 | Head | — | Ohio |
| 4 | James L. Robinson | 32 | Boarder | Laborer | Pennsylvania |
| 5 | Gilbert Robinson | 26 | Daughter | — | Ohio |
| 6 | Sylvia Phillips | 56 | Head | — | Ohio |
| 7 | Elizabeth Phillips | 23 | Daughter | Teacher | Ohio |
| 8 | Donald Llewellyn | 26 | Roomer | Clerk | Ohio |
| 9 | Harry Galavitz | 57 | Head | Manager | Hungary |
| 10 | Rose Galavitz | 44 | Wife | — | Hungary |
| 11 | Albert Galavitz | 26 | Son | Teacher | Pennsylvania |
| 12 | John Lucas THIS PERSON | 64 | Head | Carpenter | Hungary |
| 13 | Priscilla Lucas | 58 | Wife | — | Hungary |
| 14 | Irene Irene | 30 | Daughter | Beauty Operator | Ohio |
| 15 | Kalman Baranics | 34 | Head | Press Operator | Pennsylvania |
| 16 | Mary Baranics | 27 | Wife | — | Hungary |
| 17 | Robert Baranics | 8 | Son | — | Ohio |
| 18 | Kalman Baranics | 6 | Son | — | Ohio |
| 19 | John Baranics | 3 | Son | — | Ohio |
| 20 | Steve Baranics | 2 | Son | — | Ohio |
| 21 | Betty Ann Baranics | 1 | Daughter | — | Ohio |
| 22 | Albert Baranics | 24 | Head | Helper | Ohio |
| 23 | Mary Baranics | 19 | Wife | — | Ohio |
| 24 | Howard Stagner | 42 | Head | Foreman | Pennsylvania |
| 25 | Ruth Stagner | 35 | Wife | — | Pennsylvania |
| 26 | Virginia Stagner | 16 | Daughter | — | Pennsylvania |
| 27 | Francis Stagner | 13 | Son | — | Pennsylvania |
| 28 | James Miller | 50 | Head | Laborer | Kentucky |
| 29 | Ida Miller | 41 | Wife | — | Ohio |
| 30 | Alta Dunstan | 46 | Head | Housekeeper | Ohio |
| 31 | Robert Dunstan | 19 | Son | Salesman | Ohio |
| 32 | Mildred Dunstan | 18 | Daughter | — | Ohio |
| 33 | Donald Dunstan | 16 | Son | — | Ohio |
| 34 | Edward Kramer | 23 | Head | Furnace Man | Ohio |
| 35 | Henrietta Kramer | 21 | Wife | Binder | Ohio |
| 36 | Lavina Kramer | 1 | Daughter | — | Ohio |
| 37 | Clarence Kramer | 54 | Father | Hunter | Ohio |
| 38 | Alfred C. Casper | 51 | Head | Police Officer | Colorado |
| 39 | Anna M. Casper | 51 | Wife | — | Ohio |
| 40 | George R. Casper | 29 | Son | Truck Driver | Ohio |
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)