RL
Robert Lucas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Francis-County, Arkansas
Our Model Tree links this Robert Lucas across the 1930 and 1940 US Censuses in St.-Francis-County, Arkansas (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 13-person household.
Age 16
b. ~1924
Male
Son
Born: Arkansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Francis-County, Arkansas |
| Surname | Lucas |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Arkansas |
| 1935 Residence (City) | Languille Twp |
| 1935 Residence (County) | St. Francis |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
| Occupation | Farmer |
| Township / Ward | Languille Twp |
| Est. Birth Year | ~1924 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Agnes Lucas | Daughter | — | 5 | ~1935 |
| Kannie Lucas | Spouse | — | 33 | ~1907 |
| John Lucas | Son | — | 12 | ~1928 |
| Blondel Lucas | Daughter | — | 13 | ~1927 |
| Robert Lucas | Son | — | 16 | ~1924 |
| Nathaniel Lucas | Son | — | 14 | ~1926 |
| Mytrel Lucas | Daughter | — | 23 | ~1917 |
| Sherman Lucas | Son | — | 20 | ~1920 |
| Magretice Lucas | Daughter | — | 7 | ~1933 |
| Herman Lucas | Son | — | 18 | ~1922 |
| Bernice Lucas | Daughter | — | 9 | ~1931 |
| Luther Lucas | Head | — | 47 | ~1893 |
| Sherley Lucas | Daughter | — | 2 | ~1938 |
Census Appearances
1930
St Francis, …
Son, age 7
St Francis, Arkansas · implied b. ~1923 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lucas |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Arkansas |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | Arkansas |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
1940
St.-Francis-County, Arkansas
Son, age 16
St.-Francis-County, Arkansas · implied b. ~1924 — 13 household members
| Surname | Lucas |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Arkansas |
| 1935 Residence (City) | Languille Twp |
| 1935 Residence (County) | St. Francis |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 0 |
| Highest Grade | No 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 16 · b. ~1924 · Arkansas
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Sibling
Mytrel Lucas
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Agnes Lucas
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sherman Lucas
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Herman Lucas
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Blondel Lucas
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sherley Lucas
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Lucas
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Magretice Lucas
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bernice Lucas
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nathaniel Lucas
Sibling · 1940 · age 14
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 — St.-Francis-County, Arkansas
Open full size
1940 US Federal Census — St.-Francis-County, Arkansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00171-00599)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jack Jackson | 14 | Grand son | Labour | Arkansas |
| 2 | Lula (X) Jackson | 48 | Head | — | Arkansas |
| 3 | James Jackson | 22 | Son | Labour | Arkansas |
| 4 | James Jackson | 15 | Son | Labour | Arkansas |
| 5 | Franklin Tomlin | 5 | Grand son | — | Arkansas |
| 6 | Glosa May White | 3 | Daughter | — | Arkansas |
| 7 | Ola Patterson | 15 | Niece | — | Arkansas |
| 8 | Velma Patterson | 14 | Niece | — | Arkansas |
| 9 | Glose White | 55 | Head | Farmer | Mississippi |
| 10 | Nettie (X) White | 46 | Wife | — | Arkansas |
| 11 | Rubin Engram | 44 | Brother-in-law | Farmer | Arkansas |
| 12 | Charlie (X) Weatherspoon | 60 | Head | Farmer | Mississippi |
| 13 | Anna Weatherspoon | 58 | Wife | — | Arkansas |
| 14 | Othela-At Weatherspoon | 20 | Son | Common Labor | Arkansas |
| 15 | Rodger Jr. Engram | 11 | Grand son | — | Arkansas |
| 16 | Victor Wynn | 32 | Servant | House Servant | Arkansas |
| 17 | Luther (X) Lucas | 47 | Head | Farmer | North Carolina |
| 18 | Kannie Lucas | 33 | Wife | — | Arkansas |
| 19 | Mytrel Lucas | 23 | Daughter | — | Arkansas |
| 20 | Sherman Lucas | 20 | Son | Farmer | Arkansas |
| 21 | Herman Lucas | 18 | Son | Farmer | Arkansas |
| 22 | Robert Lucas THIS PERSON | 16 | Son | Farmer | Arkansas |
| 23 | Nathaniel Lucas | 14 | Son | — | Arkansas |
| 24 | Blondel Lucas | 13 | Daughter | — | Arkansas |
| 25 | John W. Lucas | 12 | Son | — | Arkansas |
| 26 | Bernice Dean Lucas | 9 | Daughter | — | Arkansas |
| 27 | Magretice Lucas | 7 | Daughter | — | Arkansas |
| 28 | Agnes Lucas | 5 | Daughter | — | Arkansas |
| 29 | Sherley Lucas | 2 | Daughter | — | Arkansas |
| 30 | Van (X) Weatherspoon | 34 | Head | Farmer | Arkansas |
| 31 | Idessie Weatherspoon | 30 | Wife | — | Arkansas |
| 32 | Charlie Weatherspoon | 10 | Son | — | Arkansas |
| 33 | Claudette Weatherspoon | 4 | Daughter | — | Arkansas |
| 34 | Lymon E. Neal | 37 | Head | Farmer | Mississippi |
| 35 | Birdie (X) Neal | 29 | Wife | — | Missouri |
| 36 | William Neal | 12 | Son | — | Arkansas |
| 37 | Hershal Neal | 11 | Son | — | Arkansas |
| 38 | Lois Neal | 9 | Daughter | — | Arkansas |
| 39 | James Neal | 6 | Son | — | Arkansas |
| 40 | Joyce Neal | 4 | Daughter | — | Arkansas |
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)