RC
Robert Caldwell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Kentucky
Our Model Tree links this Robert Caldwell across the 1920, 1930 and 1940 US Censuses in Marion-County, Kentucky (XGBoost, ~Confirmed), with identified parents Jack & Jack — first a son (b.~1917), then head of a 3-person household.
Age 23
b. ~1917
Male
Son
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Kentucky |
| Surname | Caldwell |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Lebanon city |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Occupation | Deliveryman |
| Industry | Grocery |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 432 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Deliveryman |
| Township / Ward | Lebanon City |
| Est. Birth Year | ~1917 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Caldwell | Son | — | 23 | ~1917 |
| Myrtle Caldwell | Head | — | 58 | ~1882 |
| Thomas Caldwell | Son | — | 26 | ~1914 |
Census Appearances
1920
Marion, Kentucky
Son, age 3
Marion, Kentucky · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Caldwell |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Marion, Kentucky
Son, age 13
Marion, Kentucky · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Caldwell |
| Given Name | Robt |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Marion-County, Kentucky
Son, age 23
Marion-County, Kentucky · implied b. ~1917 — 3 household members
| Surname | Caldwell |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Lebanon city |
| 1935 Residence (County) | Marion |
| Occupation | Deliveryman |
| Industry | Grocery |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 432 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 Caldwell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Jack Caldwell (~0.92 confidence) and father Jack Caldwell (~0.92 confidence) and mother Myrtle Caldwell (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Jack Caldwell
b. ~1869
Source father
● Household
· direct · ~0.92
Father
Jack Caldwell
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Myrtle Caldwell
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Caldwell
Son · 1940 · age 23 · b. ~1917 · Kentucky
★ You are viewing this record
Sibling
Thomas Caldwell
Sibling · 1940 · age 26
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 — Marion-County, Kentucky
Open full size
1940 US Federal Census — Marion-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01338-00148)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Bess Wadstow|Wadston | 45 | Head | Nurse Assistant | Kentucky |
| 2 | James Wadstow|Wadston | 18 | Son | Library Assistant | Kentucky |
| 3 | Dora Bohannon | 81 | Mother | — | Kentucky |
| 4 | Loggie Carri | 83 | Head | — | Kentucky |
| 5 | William E. Graves | 66 | Head | Painter | Kentucky |
| 6 | Jimmie Graves | 56 | Wife | Seamstress | Kentucky |
| 7 | Myrtle Caldwell | 58 | Head | — | Kentucky |
| 8 | Thomas Caldwell | 26 | Son | — | Kentucky |
| 9 | Robert Caldwell THIS PERSON | 23 | Son | Deliveryman | Kentucky |
| 10 | Cealie Lanham | 39 | Head | Machine Operator | Kentucky |
| 11 | Sybil Lanham | 40 | Wife | — | Kentucky |
| 12 | Geneva Lanham | 18 | Daughter | Part-Time Clerk | Kentucky |
| 13 | Garnet Lanham | 15 | Son | — | Kentucky |
| 14 | Billy Lanham | 5 | Son | — | Kentucky |
| 15 | Joe Rinehart | 61 | Head | — | Kentucky |
| 16 | Lucie E. Rinehart | 53 | Wife | Seamstress | Kentucky |
| 17 | Bernard Heather | 44 | Head | Machinist | Kentucky |
| 18 | Ida Heather | 44 | Wife | — | Kentucky |
| 19 | Lynwood Heather | 20 | Son | Deliveryman | Kentucky |
| 20 | Dwight D. Crisp | 37 | Head | Field Agent | Kentucky |
| 21 | Marie G. Crisp | 33 | Wife | — | Kentucky |
| 22 | Ann Crisp | 10 | Daughter | — | Kentucky |
| 23 | Nancy Crisp | 6 | Daughter | — | Kentucky |
| 24 | Michael Crisp | 5 | Son | — | Kentucky |
| 25 | Sam W. Payne | 36 | Head | Grocery Salesman | Kentucky |
| 26 | Mayme Payne | 33 | Wife | — | Kentucky |
| 27 | Russell Payne | 10 | Son | — | Kentucky |
| 28 | W. H. Knuckles | 40 | Head | Day Laborer | Kentucky |
| 29 | Hazel Knuckles | 36 | Wife | Receptionist | Kentucky |
| 30 | Pauline Knuckles | 19 | Daughter | Receptionist | Kentucky |
| 31 | Alma Knuckles | 16 | Daughter | — | Kentucky |
| 32 | Geneva R. Knuckles | 14 | Daughter | — | Kentucky |
| 33 | Margaret Prather | 25 | Head | — | Kentucky |
| 34 | Burnetta Bradford | 32 | Sister | — | Kentucky |
| 35 | Hubert Burdette | 38 | Head | Trucking | Kentucky |
| 36 | Ruby Burdette | 25 | Wife | — | Kentucky |
| 37 | Billy Burdette | 12 | Son | — | Kentucky |
| 38 | Charlotte Fagan | 7 | Daughter | — | Kentucky |
| 39 | Ernest Holt | 21 | Son-in-law | Waiter | Illinois |
| 40 | C. B. Colman | 81 | Head | — | Indiana |
Pedigree Summary
Robert + 1 sibling
Gen 1 · 3 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)