RL
Robert Lucas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Vigo-County, Indiana
Our Model Tree links this Robert Lucas across the 1930 and 1940 US Censuses in Vigo-County, Indiana (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 8-person household.
Age 12
b. ~1928
Male
Son
Born: Arkansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Vigo-County, Indiana |
| Surname | Lucas |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Arkansas |
| 1935 Residence (City) | Terre Haute City |
| 1935 Residence (County) | Vigo |
| Additional Details | |
| Highest Grade | S 4 |
| 1935 Residence | Same place |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
| Township / Ward | Terre Haute City |
| Est. Birth Year | ~1928 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Pearl Lucas | Daughter | — | 14 | ~1926 |
| Sarah Lucas | Daughter | — | 5 | ~1935 |
| Robert Lucas | Son | — | 12 | ~1928 |
| Thomas Lucas | Son | — | 3 | ~1937 |
| Clee Lucas | Head | — | 39 | ~1901 |
| Helen Lucas | Daughter | — | 17 | ~1923 |
| R Lucas | Son | — | 8 | ~1932 |
| Mamie Lucas | Daughter | — | 10 | ~1930 |
Census Appearances
1930
Vigo, Indiana
Son, age 2
Vigo, Indiana · implied b. ~1928 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lucas |
| Given Name | Robert Lee |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Arkansas |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
1940
Vigo-County, Indiana
Son, age 12
Vigo-County, Indiana · implied b. ~1928 — 8 household members
| Surname | Lucas |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Arkansas |
| 1935 Residence (City) | Terre Haute City |
| 1935 Residence (County) | Vigo |
| Highest Grade | S 4 |
| 1935 Residence | Same place |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
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 Robert Lucas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Lucas
Son · 1940 · age 12 · b. ~1928 · Indiana
★ You are viewing this record
Sibling
Sarah Lucas
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Pearl Lucas
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Lucas
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Lucas
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mamie Lucas
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
R Lucas
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Vigo-County, Indiana
Open full size
1940 US Federal Census — Vigo-County, Indiana
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-01103-00460)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Daisy Rudisel | 42 | Wife | — | Indiana |
| 2 | Paul Rudisel | 12 | Son | — | Indiana |
| 3 | Glen Rudisel | 9 | Son | — | Indiana |
| 4 | Donald Wood | 19 | Son | Laborer | Indiana |
| 5 | Mildred Wood | 17 | Daughter | — | Indiana |
| 6 | Beverly Wood | 3 | Daughter | — | Indiana |
| 7 | John Sams | 50 | Head | Repair Man | Indiana |
| 8 | Bertha P. Sams | 33 | Wife | — | Indiana |
| 9 | John V. Sams | 20 | Son | Laborer | Indiana |
| 10 | Edward Haskins | 49 | Head | Fireman | Kentucky |
| 11 | Linnie Haskins | 44 | Wife | — | Indiana |
| 12 | Elbert Brown | 30 | Son | Porter | Indiana |
| 13 | Christina Brown | 21 | Daughter-in-law | Maid | Indiana |
| 14 | Hubert Barker | 25 | Lodger | New Worker | Indiana |
| 15 | Thomas Mccarthy | 52 | Head | Laborer | Wisconsin |
| 16 | Thomas Scott | 63 | Head | Laborer | Kentucky |
| 17 | Nathan P. Scott | 65 | Brother | Hod Carrier | Kentucky |
| 18 | Nannie Dye | 71 | Head | — | Kentucky |
| 19 | Howard Shipley | 34 | Head | Laborer | Kentucky |
| 20 | Mayella Shipley | 22 | Wife | Maid | Kentucky |
| 21 | Ira Jackson | 19 | Step-son | — | Indiana |
| 22 | Eugene Baker | 5 | Boarder | — | Indiana |
| 23 | Clee Lucas | 39 | Head | — | Alabama |
| 24 | Helen Lucas | 17 | Daughter | — | Arkansas |
| 25 | Pearl Lucas | 14 | Daughter | — | Arkansas |
| 26 | Robert Lucas THIS PERSON | 12 | Son | — | Arkansas |
| 27 | Mamie Lucas | 10 | Daughter | — | Arkansas |
| 28 | R. D. Lucas | 8 | Son | — | Indiana |
| 29 | Sarah Lucas | 5 | Daughter | — | Indiana |
| 30 | Thomas Lucas | 3 | Son | — | Indiana |
| 31 | Thomas Shannon | 47 | Head | Porter | Alabama |
| 32 | Guy Churchill | 63 | Head | Janitor | N. Carolina |
| 33 | Lydia Churchill | 67 | Wife | — | Kentucky |
| 34 | Emma Evans | 64 | Head | Laundress | Kentucky |
| 35 | Jessie Williams | 39 | Son | Laborer | Indiana |
| 36 | Almator Williams | 39 | Son | Porter | Indiana |
| 37 | David Williams | 1 | Grandson | — | Indiana |
| 38 | Charles Elmore | 66 | Head | Laborer | Tennessee |
| 39 | Fannie Elmore | 60 | Wife | — | Alabama |
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)