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Robert Willis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Martin-County, Louisiana
Our Model Tree links this Robert Willis across the 1920, 1930 and 1940 US Censuses in St.-Martin-County, Louisiana (XGBoost, ~Confirmed) — first a head (b.~1892), then head of a 9-person household.
Age 48
b. ~1892
Male
Head
Born: Louisiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Martin-County, Louisiana |
| Surname | Willis |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Louisiana |
| 1935 Residence (City) | Ward 4 |
| 1935 Residence (County) | St. Martin |
| Additional Details | |
| Occupation | Truck Driver |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 500 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
| Occupation | Truck Driver |
| Township / Ward | Ward 4 |
| Est. Birth Year | ~1892 |
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 |
|---|---|---|---|---|
| Hazel Willis | Daughter | — | 15 | ~1925 |
| Robert Willis | Head | — | 48 | ~1892 |
| Sidney Willis | Son | — | 24 | ~1916 |
| Magella Willis | Spouse | — | 46 | ~1894 |
| Genevieve Willis | Daughter | — | 17 | ~1923 |
| Earl Willis | Son | — | 22 | ~1918 |
| Marilyn Willis | Other | — | 3 | ~1937 |
| Rita Willis | Daughter | — | 10 | ~1930 |
| Margaret Willis | Other | — | 26 | ~1914 |
Census Appearances
1920
Acadia, Louisiana
Head, age 28
Acadia, Louisiana · implied b. ~1892 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Willis |
| Given Name | Raty |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Occupation | Farm Laborer |
| Industry | Home farm |
| Class of Worker | OA |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Mother Tongue | Louisiana |
| Birth State | Louisiana |
| Birth Country | United States |
| Year of Naturalization | R |
| Birthplace (normalized) | louisiana |
1930
St Martin, …
Head, age 38
St Martin, Louisiana · implied b. ~1892 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Willis |
| Given Name | Rott |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Louisiana |
| Age at First Marriage | 21 |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Occupation | Laborer |
| Industry | Gen Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1940
St.-Martin-County, Louisiana
Head, age 48
St.-Martin-County, Louisiana · implied b. ~1892 — 9 household members
| Surname | Willis |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Louisiana |
| 1935 Residence (City) | Ward 4 |
| 1935 Residence (County) | St. Martin |
| Occupation | Truck Driver |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 500 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
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 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Willis
Head · 1940 · age 48 · b. ~1892 · Louisiana
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — St.-Martin-County, Louisiana
Open full size
1940 US Federal Census — St.-Martin-County, Louisiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01453-00615)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Melba Miltz | 12 | Daughter | — | Louisiana |
| 42 | Wallace Miltz | 11 | Son | — | Louisiana |
| 43 | Ernest Miltz | 9 | Son | — | Louisiana |
| 44 | Jim Miltz | 6 | Son | — | Louisiana |
| 45 | Doris Miltz | 4 | Daughter | — | Louisiana |
| 46 | Eugene Miltz | 2 | Son | — | Louisiana |
| 47 | Jackson Lachaussee | 58 | Head | Farmer | Louisiana |
| 48 | Emilie Lachaussee | 44 | Wife | — | Louisiana |
| 49 | Elaine Lachaussee | 15 | Daughter | — | Louisiana |
| 50 | Solange Lachaussee | 13 | Daughter | — | Louisiana |
| 51 | Lee Allen Lachaussee | 10 | Son | — | Louisiana |
| 52 | Annette Huval | 30 | Head | Farmer | Louisiana |
| 53 | Sophie Huval | 27 | Wife | — | Louisiana |
| 54 | Harry Huval | 10 | Son | — | Louisiana |
| 55 | Joyce Huval | 7 | Daughter | — | Louisiana |
| 56 | Shirley Huval | 5 | Daughter | — | Louisiana |
| 57 | George Huval | 2 | Daughter | — | Louisiana |
| 58 | Robert Willis THIS PERSON | 48 | Head | Truck Driver | Louisiana |
| 59 | Magella Willis | 46 | Wife | — | Louisiana |
| 60 | Earl Willis | 22 | Son | Helper | Louisiana |
| 61 | Genevieve Willis | 17 | Daughter | — | Louisiana |
| 62 | Hazel Willis | 15 | Daughter | — | Louisiana |
| 63 | Rita Willis | 10 | Daughter | — | Louisiana |
| 64 | Sidney Willis | 24 | Son | Farmer | Louisiana |
| 65 | Margaret Willis | 26 | Daughter-in-law | — | Louisiana |
| 66 | Marilyn Willis | 3 | Granddaughter | — | Louisiana |
| 67 | Albert Washington | 37 | Head | Laborer | Louisiana |
| 68 | Lillian Washington | 30 | Wife | — | Louisiana |
| 69 | Joseph Washington | 4 | Son | — | Louisiana |
| 70 | Noah Mary Washington | 1 | Daughter | — | Louisiana |
| 71 | Paul Guidry | 35 | Head | Farmer | Louisiana |
| 72 | Addie Guidry | 33 | Wife | — | Louisiana |
| 73 | Loretta Guidry | 13 | Daughter | — | Louisiana |
| 74 | Paul Guidry | 11 | Son | — | Louisiana |
| 75 | Valentine Guidry | 10 | Daughter | — | Louisiana |
| 76 | Lacie Mae Guidry | 9 | Daughter | — | Louisiana |
| 77 | Evelyn Guidry | 6 | Daughter | — | Louisiana |
| 78 | Shirley Guidry | 4 | Daughter | — | Louisiana |
| 79 | Effie Guidry | 84 | Mother | — | Louisiana |
| 80 | Frank Willis | 27 | Head | Truck Driver | Louisiana |
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)