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Robert Willis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lawrence-County, Indiana
Our Model Tree links this Robert Willis across the 1930 and 1940 US Censuses in Lawrence-County, Indiana (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 9-person household.
Age 15
b. ~1925
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lawrence-County, Indiana |
| Surname | Willis |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Marion Township |
| 1935 Residence (County) | Lawrence |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Marion Township |
| Est. Birth Year | ~1925 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Harold Briscoe | Other | — | 21 | ~1919 |
| Elmer Willis | Head | — | 42 | ~1898 |
| Mary Briscoe | Daughter | — | 20 | ~1920 |
| Marie Willis | Daughter | — | 17 | ~1923 |
| Betty Willis | Daughter | — | 11 | ~1929 |
| Walter Willis | Son | — | 9 | ~1931 |
| Emma Willis | Spouse | — | 40 | ~1900 |
| Joan Willis | Daughter | — | 2 | ~1938 |
| Robert Willis | Son | — | 15 | ~1925 |
Census Appearances
1930
Lawrence, Indiana
Son, age 5
Lawrence, Indiana · implied b. ~1925 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Willis |
| Given Name | Robert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Lawrence-County, Indiana
Son, age 15
Lawrence-County, Indiana · implied b. ~1925 — 9 household members
| Surname | Willis |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Marion Township |
| 1935 Residence (County) | Lawrence |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Willis across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Willis
Son · 1940 · age 15 · b. ~1925 · Indiana
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Sibling
Mary Briscoe
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Willis
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Willis
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joan Willis
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Willis
Sibling · 1940 · age 11
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 — Lawrence-County, Indiana
Open full size
1940 US Federal Census — Lawrence-County, Indiana
Page Contents
33 people indexed on this census page (nara:1940:m-t0627-01071-00223)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Claude O. Albright | 34 | Head | Laborer | Indiana |
| 2 | Avanelle Albright | 31 | Wife | Seamstress | Indiana |
| 3 | Vivian Albright | 14 | Daughter | — | Indiana |
| 4 | Kenneth Albright | 12 | Son | — | Indiana |
| 5 | Alberta Albright | 9 | Daughter | — | Indiana |
| 6 | Charles Albright | 7 | Son | — | Indiana |
| 7 | Hayden Brewer | 32 | Head | Farmer | Indiana |
| 8 | Muriel O. Brewer | 29 | Wife | — | Indiana |
| 9 | Helen Brewer | 10 | Daughter | — | Indiana |
| 10 | Elmer O. Willis | 42 | Head | Motorman | Kentucky |
| 11 | Emma Willis | 40 | Wife | — | Indiana |
| 12 | Marie Willis | 17 | Daughter | New Worker | Indiana |
| 13 | Robert Willis THIS PERSON | 15 | Son | — | Indiana |
| 14 | Betty Jean Willis | 11 | Daughter | — | Indiana |
| 15 | Walter Willis | 9 | Son | — | Indiana |
| 16 | Joan Willis | 2 | Daughter | — | Indiana |
| 17 | Harold Briscoe | 21 | Son-in-law | Laborer | Indiana |
| 18 | Mary Lou Briscoe | 20 | Daughter | — | Indiana |
| 19 | Harry Mann | 54 | Head | Boiler Man | Indiana |
| 20 | Lena O. Mann | 47 | Wife | — | Indiana |
| 21 | Frank Mann | 20 | Son | Laborer | Indiana |
| 22 | Leonard Mann | 18 | Son | Farmer | Indiana |
| 23 | Maxine Mann | 15 | Daughter | — | Indiana |
| 24 | Homer Mann | 13 | Son | — | Indiana |
| 25 | Barbara Mann | 12 | Daughter | — | Indiana |
| 26 | Deane Mann | 9 | Son | — | Indiana |
| 27 | Jackie Mann | 5 | Son | — | Indiana |
| 28 | Roy Mccullough | 25 | Head | Farmer | Oklahoma |
| 29 | Carmen Mccullough | 23 | Wife | — | Iowa |
| 30 | Elbert Roy Mccullough | 1 | Son | — | Indiana |
| 31 | Sally O. Mccullough | 60 | Head | Farmer | Indiana |
| 32 | Everett O. Campbell | 60 | Head | Laborer | Indiana |
| 33 | Maude E. Campbell | 43 | Wife | Nurse | Kentucky |
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)