JL
John Lucas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Pawnee-County, Oklahoma
Our Model Tree links this John Lucas across the 1920, 1930 and 1940 US Censuses in Pawnee-County, Oklahoma (XGBoost, ~Confirmed) — first a head (b.~1896), then head of a 3-person household.
Age 44
b. ~1896
Male
Head
Born: Oklahoma
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Pawnee-County, Oklahoma |
| Surname | Lucas |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Oklahoma |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Gray |
| Additional Details | |
| Occupation | Farmer |
| Industry | Agriculture |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 64 |
| Highest Grade | No 4 |
| 1935 Residence | Texas |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
| Occupation | Farmer |
| Township / Ward | Jordan Valley Township |
| Est. Birth Year | ~1896 |
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 |
|---|---|---|---|---|
| John Lucas | Head | — | 44 | ~1896 |
| John Lucas | Son | — | 11 | ~1929 |
| Lona Lucas | Spouse | — | 33 | ~1907 |
Census Appearances
1920
Pawnee, Oklahoma
Head, age 24
Pawnee, Oklahoma · implied b. ~1896 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lucas |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Oklahoma |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Kentucky |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1930
Pawnee, Oklahoma
Head, age 34
Pawnee, Oklahoma · implied b. ~1896 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lucas |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Oklahoma |
| Age at First Marriage | 26 |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Kentucky |
| Occupation | Tool dresser |
| Industry | Oil field |
| Class of Worker | 00XV |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 6 |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1940
Pawnee-County, Oklahoma
Head, age 44
Pawnee-County, Oklahoma · implied b. ~1896 — 3 household members
| Surname | Lucas |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Oklahoma |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Gray |
| Occupation | Farmer |
| Industry | Agriculture |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 64 |
| Highest Grade | No 4 |
| 1935 Residence | Texas |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
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 44 · b. ~1896 · Oklahoma
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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 — Pawnee-County, Oklahoma
Open full size
1940 US Federal Census — Pawnee-County, Oklahoma
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03322-00255)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Max Norwood | 30 | Wife | — | Oklahoma |
| 42 | Nola Mae Norwood | 3 | Daughter | — | Oklahoma |
| 43 | Emil Hickman | 47 | Head | Pumper | West Virginia |
| 44 | Sylvia Hickman | 46 | Wife | — | West Virginia |
| 45 | James Hickman | 24 | Son | Assembly Man | Oklahoma |
| 46 | Harold Hickman | 16 | Son | — | Oklahoma |
| 47 | Thomas B. Mercer | 84 | Father-in-law | — | West Virginia |
| 48 | Matilda Donnelly | 68 | Head | — | Kansas |
| 49 | Claude Donnelly | 46 | Son | Laborer | Kansas |
| 50 | Gladys Mae Donnelly | 45 | Daughter-in-law | — | Arkansas |
| 51 | Claude Donnelly | 29 | Son | Farm Hand | Oklahoma |
| 52 | Dorothy Donnelly | 25 | Daughter-in-law | — | Oklahoma |
| 53 | Jesse Lee Garrison | 41 | Head | Farmer | Missouri |
| 54 | Opal L. Garrison | 40 | Wife | — | Arkansas |
| 55 | Doyle B. Garrison | 18 | Son | Draftsman | Oklahoma |
| 56 | Norman Garrison | 16 | Son | — | Oklahoma |
| 57 | Basil Garrison | 14 | Son | — | Oklahoma |
| 58 | Gene Garrison | 10 | Son | — | Oklahoma |
| 59 | Dale Garrison | 8 | Son | — | Oklahoma |
| 60 | Mavis Garrison | 5 | Daughter | — | Oklahoma |
| 61 | Paul Wayne Garrison | 2 | Son | — | Oklahoma |
| 62 | John F. Mcnair | 70 | Head | — | Arkansas |
| 63 | Minnie J. Mcnair | 49 | Wife | — | Arkansas |
| 64 | Lewis John Mcnair | 21 | Son | Farmer | Arkansas |
| 65 | Harrison Earl Mcnair | 18 | Son | Farmer | Oklahoma |
| 66 | Wanda Lucille Mcnair | 14 | Daughter | — | Oklahoma |
| 67 | Rosalee Howard Mcnair | 11 | Son | — | Oklahoma |
| 68 | Tommy Doyle Mcnair | 7 | Son | — | Oklahoma |
| 69 | Jackie Dorwin Mcnair | 4 | Son | — | Oklahoma |
| 70 | Cecil Clyde Dean | 27 | Step-son | Tr. Truck Driver | Arkansas |
| 71 | John H. Lucas THIS PERSON | 44 | Head | Farmer | Oklahoma |
| 72 | Lona Lucas | 33 | Wife | — | Oklahoma |
| 73 | John H. Jr. Lucas | 11 | Son | — | Oklahoma |
| 74 | David Connor | 67 | Head | Truck Driver | Oklahoma |
| 75 | Melvin Wallace Connor | 17 | Son | — | Oklahoma |
| 76 | John Albert Rowe | 56 | Head | Pumper | Kansas |
| 77 | Lucille May Rowe | 52 | Wife | — | Canada English |
| 78 | Leo S. Rowe | 18 | Son | — | Oklahoma |
| 79 | J. D. Rowe | 14 | Son | — | Oklahoma |
| 80 | Grover Dale Rowe | 11 | Son | — | Oklahoma |
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)