JL
John Lucas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Warren-County, Indiana
Our Model Tree links this John Lucas across the 1920, 1930 and 1940 US Censuses in Warren-County, Indiana (XGBoost, ~Confirmed) — first a head (b.~1884), then head of a 3-person household.
Age 56
b. ~1884
Male
Head
Born: Virginia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Warren-County, Indiana |
| Surname | Lucas |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Virginia |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Warren |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Indiana |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
| Occupation | Farmer |
| Township / Ward | Pine Twp |
| Est. Birth Year | ~1884 |
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 |
|---|---|---|---|---|
| Ruth Ford | Daughter | — | 28 | ~1912 |
| John Lucas | Head | — | 56 | ~1884 |
| Ralph Ford | Other | — | 29 | ~1911 |
Census Appearances
1920
Warren, Indiana
Head, age 36
Warren, Indiana · implied b. ~1884 — 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 | 36 |
| Marital Status | Married |
| Birthplace | Virginia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Occupation | Farmer |
| Industry | Grain |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1930
Warren, Indiana
Head, age 45
Warren, Indiana · implied b. ~1885 — 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 | 45 |
| Marital Status | Married |
| Birthplace | Virginia |
| Age at First Marriage | 21 |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Occupation | Farmer |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 6 |
| Radio Set | R |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1940
Warren-County, Indiana
Head, age 56
Warren-County, Indiana · implied b. ~1884 — 3 household members
| Surname | Lucas |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Virginia |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Warren |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Indiana |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
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 56 · b. ~1884 · Indiana
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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 — Warren-County, Indiana
Open full size
1940 US Federal Census — Warren-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01106-00930)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Garland Bullington | 7 | Son | — | Indiana |
| 2 | Wilma Bullington | 5 | Daughter | — | Indiana |
| 3 | William Arch Lakin | 65 | Head | Farmer | Indiana |
| 4 | Anna Lakin | 59 | Wife | — | Indiana |
| 5 | William Lewis Lakin | 34 | Son | Farm Laborer | Indiana |
| 6 | Marilyn A Young | 4 | Granddaughter | — | Indiana |
| 7 | John Lucas THIS PERSON | 56 | Head | Farmer | Virginia |
| 8 | Ruth Ford | 28 | Daughter | — | Indiana |
| 9 | Ralph Ford | 29 | Son-in-law | Farm Laborer | Indiana |
| 10 | Frank V. Hall | 74 | Head | Farmer | Indiana |
| 11 | Mettie Rose Hall | 64 | Wife | — | Indiana |
| 12 | Harold F Hall | 30 | Son | Electrician | Indiana |
| 13 | Walter R Denman | 60 | Head | Farmer | Illinois |
| 14 | Hettie R Denman | 54 | Wife | — | Kansas |
| 15 | Wallace Bales | 66 | Head | Farm Laborer | Indiana |
| 16 | Ora Bales | 58 | Wife | — | Indiana |
| 17 | Mary A Drummond | 8 | Granddaughter | — | Michigan |
| 18 | Charles Redwine | 66 | Son-in-law | — | Indiana |
| 19 | Beulah Redwine | 38 | Daughter | — | Indiana |
| 20 | Ray Alexander | 47 | Head | Farmer | Indiana |
| 21 | Francis Alexander | 42 | Sister | — | Indiana |
| 22 | Florence Alexander | 82 | Mother | — | Illinois |
| 23 | Eldon Kaiser | 29 | Head | Farmer | Illinois |
| 24 | Geneva Kaiser | 25 | Wife | — | Indiana |
| 25 | Patsy Ann Kaiser | 5 | Daughter | — | Indiana |
| 26 | Sandra Kay Kaiser | 2 | Daughter | — | Indiana |
| 27 | Alfred M. Tribbett | 70 | Head | Farmer | Indiana |
| 28 | Lehuia Tribbett | 59 | Wife | — | Indiana |
| 29 | Anna Mae Tribbett | 21 | Daughter | School Teacher | Indiana |
| 30 | Frank Wagner | 53 | Lodger | Farm Laborer | Indiana |
| 31 | Clarence Mcdaniel | 29 | Head | Farm Laborer | Kentucky |
| 32 | Velva Mcdaniel | 30 | Wife | — | Kentucky |
| 33 | John Mcdaniel | 10 | Son | — | Kentucky |
| 34 | Rosaline Mcdaniel | 8 | Daughter | — | Kentucky |
| 35 | Fay Doris Mcdaniel | 4 | Daughter | — | Indiana |
| 36 | Delores Mcdaniel | 2 | Daughter | — | Indiana |
| 37 | Ray R Lamb | 57 | Head | Farmer | Indiana |
| 38 | Mary E Lamb | 57 | Wife | — | Kentucky |
| 39 | Conrad Fletcher | 31 | Head | Carpenter | Indiana |
| 40 | Lettye Fletcher | 26 | Wife | — | Indiana |
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)