RH
Robert Hart — 1940 US Census Record
Model Tree available1940 United States Federal Census · Greene-County, Illinois
Our Model Tree links this Robert Hart across the 1920, 1930 and 1940 US Censuses in Greene-County, Illinois (XGBoost, ~Confirmed), with identified parents Robert & Robert — first a son (b.~1916), then head of a 4-person household.
Age 24
b. ~1916
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Greene-County, Illinois |
| Surname | Hart |
| Given Name | Robert Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (County) | Greene |
| Additional Details | |
| Occupation | 60 |
| Industry | Laborer |
| Class of Worker | Farm |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | 60 |
| Township / Ward | Whitehall |
| Est. Birth Year | ~1916 |
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 |
|---|---|---|---|---|
| Robert Hart | Other | — | 2 | ~1938 |
| Robert Hart | Head | — | 58 | ~1882 |
| Robert Hart | Son | — | 24 | ~1916 |
| Mary Hart | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Greene, Illinois
Son, age 4
Greene, Illinois · implied b. ~1916 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hart |
| Given Name | Robert M |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Greene, Illinois
Son, age 14
Greene, Illinois · implied b. ~1916 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hart |
| Given Name | Robert M Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Greene-County, Illinois
Son, age 24
Greene-County, Illinois · implied b. ~1916 — 4 household members
| Surname | Hart |
| Given Name | Robert Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (County) | Greene |
| Occupation | 60 |
| Industry | Laborer |
| Class of Worker | Farm |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Hart across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Robert Hart (~0.92 confidence) and father Robert Hart (~0.92 confidence) and mother Mary Hart (~0.92 confidence) and mother Mary Hart (~0.92 confidence) and mother Mary Hart (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Robert Hart
b. ~1882
Source father
● Household
· direct · ~0.92
Father
Robert Hart
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Mary Hart
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Mary Hart
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Mary Hart
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Hart
Son · 1940 · age 24 · b. ~1916 · Illinois
★ 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 — Greene-County, Illinois
Open full size
1940 US Federal Census — Greene-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00808-00526)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ronald Dunlap | 5 | Son | — | Illinois |
| 2 | Charley Bumgardner | 63 | Lodger | 60 | Illinois |
| 3 | Donald Smith | 34 | Head | 60 | Illinois |
| 4 | Lela Smith | 32 | Wife | — | Illinois |
| 5 | Eugene Smith | 11 | Son | — | Illinois |
| 6 | William Elliott | 55 | Head | 60 | Illinois |
| 7 | Beatrice Elliott | 38 | Wife | 5 | Illinois |
| 8 | Wanda Elliott | 10 | Daughter | — | Illinois |
| 9 | Lewis Elliott | 9 | Son | — | Illinois |
| 10 | Carolyn Elliott | 4 | Daughter | — | Illinois |
| 11 | Robert Hart | 58 | Head | 60 | Illinois |
| 12 | Mary Hart | 53 | Wife | — | Illinois |
| 13 | Robert Jr Hart THIS PERSON | 24 | Son | 60 | Illinois |
| 14 | Robert Iii Hart | 2 | Grandson | — | Illinois |
| 15 | George Mellon | 50 | Head | 60 | Illinois |
| 16 | Margaret Mellon | 48 | Wife | — | Illinois |
| 17 | Zellia Mellon | 17 | Daughter | — | Illinois |
| 18 | Pauline Mellon | 15 | Daughter | — | Illinois |
| 19 | George R Mellon | 10 | Son | — | Illinois |
| 20 | James Paul Mellon | 8 | Son | — | Illinois |
| 21 | Mabel Mellon | 5 | Daughter | — | Illinois |
| 22 | Samuel Bardwell | 64 | Head | 60 | Illinois |
| 23 | Rosy Bardwell | 44 | Wife | — | Illinois |
| 24 | Leo Bardwell | 23 | Son | 60 | Illinois |
| 25 | Ruby Bardwell | 18 | Daughter | — | Illinois |
| 26 | Edward Gibson | 47 | Lodger | 60 | Illinois |
| 27 | Nelle Cummings | 49 | Head | 60 | Illinois |
| 28 | Ray Cummings | 25 | Son | 60 | Illinois |
| 29 | Kenneth Cummings | 21 | Son | 60 | Illinois |
| 30 | Floyd Cummings | 19 | Son | 60 | Illinois |
| 31 | Mildred Cummings | 17 | Daughter | — | Illinois |
| 32 | Junior Cummings | 15 | Son | — | Illinois |
| 33 | Helen Cummings | 13 | Daughter | — | Illinois |
| 34 | Alice Cummings | 9 | Daughter | — | Illinois |
| 35 | Norma Cummings | 6 | Daughter | — | Illinois |
| 36 | Hector Harbaugh | 32 | Head | 40 | Illinois |
| 37 | Neil Harbaugh | 27 | Brother | 40 | Arkansas |
| 38 | Sigma Harbaugh | 26 | Sister | — | Illinois |
| 39 | Hal Harbaugh | 19 | Brother | 40 | Illinois |
| 40 | Winnifred Harbaugh | 23 | Sister | — | Illinois |
Pedigree Summary
Robert
Gen 1 · 5 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)