RR
Robert Ross — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-James-County, Louisiana
Our Model Tree links this Robert Ross across the 1920, 1930 and 1940 US Censuses in St.-James-County, Louisiana (XGBoost, ~Confirmed), with identified parents Mary & Elena — first a son (b.~1919), then head of a 4-person household.
Age 21
b. ~1919
Male
Son
Born: Louisiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-James-County, Louisiana |
| Surname | Ross |
| Given Name | Robert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | Black |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (City) | Welcome |
| 1935 Residence (County) | St. James |
| Additional Details | |
| Occupation | laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 866 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
| Occupation | Laborer |
| Township / Ward | Welcome |
| Est. Birth Year | ~1919 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Ophelia Small | Daughter | — | 25 | ~1915 |
| Clarence Anderson | Other | — | 1 | ~1939 |
| Robert Ross | Son | — | 21 | ~1919 |
| Mary Ross | Spouse | — | 54 | ~1886 |
Census Appearances
1920
St James, …
Son, age 3
St James, Louisiana · implied b. ~1917 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ross |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1930
St James, …
Son, age 14
St James, Louisiana · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ross |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1940
St.-James-County, Louisiana
Son, age 21
St.-James-County, Louisiana · implied b. ~1919 — 4 household members
| Surname | Ross |
| Given Name | Robert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | Black |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Louisiana |
| 1935 Residence (City) | Welcome |
| 1935 Residence (County) | St. James |
| Occupation | laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 866 |
| Highest Grade | No 6 |
| 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 Ross across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Ross (~0.92 confidence) and mother Elena Ross (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Mary Ross
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Elena Ross
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Ross
Son · 1940 · age 21 · b. ~1919 · Louisiana
★ You are viewing this record
Sibling
Ophelia Small
Sibling · 1940 · age 25
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.-James-County, Louisiana
Open full size
1940 US Federal Census — St.-James-County, Louisiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01449-00151)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Ross | 54 | wife | — | Louisiana |
| 2 | Robert Ross THIS PERSON | 21 | son | Laborer | Louisiana |
| 3 | Ophelia Small | 25 | daughter | Laborer | Louisiana |
| 4 | Clarence Anderson | 1 | grandson | — | Louisiana |
| 5 | Nick George | 27 | head | Laborer | Louisiana |
| 6 | Mary George | 18 | wife | — | Louisiana |
| 7 | Amedee Scioneaux | 64 | head | Laborer | Louisiana |
| 8 | Rebecca Scioneaux | 58 | wife | — | Louisiana |
| 9 | Bernice Scioneaux | 27 | daughter | — | Louisiana |
| 10 | Viola Scioneaux | 23 | daughter | — | Louisiana |
| 11 | Sam Carter | 57 | head | Mill Hand | Louisiana |
| 12 | Polly Carter | 49 | wife | — | Louisiana |
| 13 | Ether May Carter | 12 | daughter | — | Louisiana |
| 14 | Robert Stewart | 63 | head | Laborer | Louisiana |
| 15 | Dora Stewart | 45 | wife | — | Louisiana |
| 16 | Linda Stewart | 31 | daughter | — | Louisiana |
| 17 | Edith Stewart | 28 | daughter | Laborer | Louisiana |
| 18 | Oliver Hooper | 24 | stepson | Laborer | Louisiana |
| 19 | Ida May Lewis | 2 | granddaughter | — | Louisiana |
| 20 | Adam Martin | 42 | head | Laborer | Louisiana |
| 21 | Elvena Martin | 38 | wife | — | Louisiana |
| 22 | Norman Martin | 8 | son | — | Louisiana |
| 23 | Velma Martin | 5 | daughter | — | Louisiana |
| 24 | Rosa Garrison | 28 | sister in law | Laborer | Louisiana |
| 25 | Otis Torres | 50 | head | Overseer | Louisiana |
| 26 | Ellen Torres | 43 | wife | — | Louisiana |
| 27 | Roy Torres | 25 | son | Laborer | Louisiana |
| 28 | Cesaire Torres | 23 | daughter | — | Louisiana |
| 29 | Joseph Torres | 19 | son | Laborer | Louisiana |
| 30 | Herman Torres | 17 | son | — | Louisiana |
| 31 | Mildred Torres | 14 | daughter | — | Louisiana |
| 32 | Clara Torres | 12 | daughter | — | Louisiana |
| 33 | Roland Torres | 10 | son | — | Louisiana |
| 34 | Helen Torres | 3 | daughter | — | Louisiana |
| 35 | William Dantin | 56 | head | Machinist | Louisiana |
| 36 | Alice Dantin | 54 | wife | — | Louisiana |
| 37 | Allen Matherne | 22 | head | Salesman | Louisiana |
| 38 | Allen May Matherne | 20 | sister | — | Louisiana |
| 39 | Mable Matherne | 17 | sister | — | Louisiana |
| 40 | Berdia Matherne | 16 | sister | — | Louisiana |
Pedigree Summary
Robert + 1 sibling
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
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)