WC
William Caldwell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Jefferson-County, Kentucky
Our Model Tree links this William Caldwell across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Kentucky (XGBoost, ~Confirmed), with identified parents James & Lora — first a son (b.~1922), then head of a 9-person household.
Age 18
b. ~1922
Male
Son
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Kentucky |
| Surname | Caldwell |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Louisville City |
| Est. Birth Year | ~1922 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Roberta Caldwell | Daughter | — | 20 | ~1920 |
| Dorothy Caldwell | Daughter | — | 15 | ~1925 |
| James Caldwell | Head | — | 60 | ~1880 |
| James Brown | Other | — | 3 | ~1937 |
| Irenagene Brown | Other | — | 1 | ~1939 |
| Herbert Caldwell | Son | — | 20 | ~1920 |
| Earl Caldwell | Son | — | 22 | ~1918 |
| William Caldwell | Son | — | 18 | ~1922 |
| Lora Caldwell | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Jefferson, Kentucky
Son, age 3
Jefferson, Kentucky · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Caldwell |
| Given Name | William |
| Relationship to Head | son |
| Sex | M |
| Color / Race | Black |
| 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
Jefferson, Kentucky
Son, age 12
Jefferson, Kentucky · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Caldwell |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 12 |
| 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
Jefferson-County, Kentucky
Son, age 18
Jefferson-County, Kentucky · implied b. ~1922 — 9 household members
| Surname | Caldwell |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville City |
| 1935 Residence (County) | Jefferson |
| Class of Worker | 0 |
| Highest Grade | Hs 2 |
| 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 William Caldwell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Caldwell (~0.92 confidence) and mother Lora Caldwell (~0.92 confidence) and father John Caldwell (~0.92 confidence) and mother Cora Caldwell (~0.92 confidence) and father John Caldwell (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Caldwell
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Lora Caldwell
b. ~1887
Source mother
● Household
· direct · ~0.92
Father
John Caldwell
b. ~1894
Source father
● Household
· direct · ~0.92
Mother
Cora Caldwell
b. ~1897
Source mother
● Household
· direct · ~0.92
Father
John Caldwell
b. ~1899
Source father
● Household
· direct · ~0.92
This person
Anchor record
William Caldwell
Son · 1940 · age 18 · b. ~1922 · Kentucky
★ You are viewing this record
Sibling
Herbert Caldwell
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Roberta Caldwell
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Earl Caldwell
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Caldwell
Sibling · 1940 · age 15
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 — Jefferson-County, Kentucky
Open full size
1940 US Federal Census — Jefferson-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01368-00128)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alberta Mason | 28 | Head | Maid | Tennessee |
| 2 | Elizabeth Rumble | 25 | Cousin | Maid | Tennessee |
| 3 | Hattie Mae Allen | 11 | Cousin | — | Tennessee |
| 4 | John Brim | 52 | Head | Laborer | Mississippi |
| 5 | Clara Brim | 41 | Wife | — | Kentucky |
| 6 | Julia Brim | 13 | Daughter | — | Kentucky |
| 7 | Dora Brim | 10 | Daughter | — | Kentucky |
| 8 | Earl Woolfork | 22 | Head | Porter | Kentucky |
| 9 | Nannie Woolfork | 20 | Daughter | Maid | Kentucky |
| 10 | Marion Woolfork | 2 | Grandson | — | Kentucky |
| 11 | William Taylor | 21 | Step Son | Handyman | Kentucky |
| 12 | Onnie Taylor | 16 | Step Daughter | — | Kentucky |
| 13 | Eddie Hobbs | 5 | Grandson | — | Kentucky |
| 14 | Eugene Hobbs | 4 | Grandson | — | Kentucky |
| 15 | Valora Noster | 1 | Grandson | — | Kentucky |
| 16 | Fanny Fair | 36 | Head | — | Alabama |
| 17 | Earnest Stanly | 21 | Son in law | Tire Changer | Kentucky |
| 18 | Charlie Mae Stanly | 17 | Daughter | — | Alabama |
| 19 | Ada Marie Rosey | 3 | Granddaughter | — | Kentucky |
| 20 | Daisy Watson | 14 | Niece | — | Alabama |
| 21 | Jerry Mack | 55 | Lodger | Wall Cleaner | Kentucky |
| 22 | Granville Wade | 35 | Head | Porter | Kentucky |
| 23 | Margaret Wade | 34 | Wife | — | Kentucky |
| 24 | Laura Wade | 14 | Daughter | — | Kentucky |
| 25 | Granville Wade | 13 | Grandson | — | Kentucky |
| 26 | Juanita Wade | 12 | Daughter | — | Kentucky |
| 27 | Charlie Wade | 10 | Son | — | Kentucky |
| 28 | Genevieve Wade | 8 | Daughter | — | Kentucky |
| 29 | James Wade | 7 | Son | — | Kentucky |
| 30 | James Caldwell | 60 | Head | Laborer | Kentucky |
| 31 | Lora Caldwell | 53 | Wife | — | Kentucky |
| 32 | Roberta Caldwell | 20 | Daughter | Waitress | Kentucky |
| 33 | Earl Caldwell | 22 | Son | Chauffeur | Kentucky |
| 34 | Herbert Caldwell | 20 | Son | Odd Jobs | Kentucky |
| 35 | William Caldwell THIS PERSON | 18 | Son | — | Kentucky |
| 36 | Dorothy Caldwell | 15 | Daughter | — | Kentucky |
| 37 | James Brown | 3 | Grandson | — | Kentucky |
| 38 | Irenagene Brown | 1 | Granddaughter | — | Kentucky |
| 39 | Eugene Marks | 43 | Head | — | Tennessee |
| 40 | May Marks | 40 | Wife | Laundress | Kentucky |
Pedigree Summary
William + 4 siblings
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)