WC
William Caldwell — 1940 US Census Record
Model Tree available1940 United States Federal Census · York-County, South Carolina
Our Model Tree links this William Caldwell across the 1920, 1930 and 1940 US Censuses in York-County, South Carolina (XGBoost, ~Confirmed), with identified parents John & Lula — first a head (b.~1911), then head of a 3-person household.
Age 29
b. ~1911
Male
Head
Born: South Carolina
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | York-County, South Carolina |
| Surname | Caldwell |
| Given Name | William J. B. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | Bethel Township |
| 1935 Residence (County) | York |
| Additional Details | |
| Occupation | laborer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | South Carolina |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Occupation | Laborer |
| Township / Ward | Bethel Township |
| Est. Birth Year | ~1911 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| William Caldwell | Head | — | 29 | ~1911 |
| Richard Caldwell | Son | — | 3 | ~1937 |
| Marshall Caldwell | Spouse | — | 27 | ~1913 |
Census Appearances
1920
York, South …
Son, age 11
York, South Carolina · implied b. ~1909 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Caldwell |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 11 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | Laborer |
| Industry | Home Farm |
| Class of Worker | W |
| Can Read | No |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1930
York, South …
Son, age 21
York, South Carolina · implied b. ~1909 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Caldwell |
| Given Name | William S |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 21 |
| Marital Status | Single |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | Farm Laborer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
York-County, South …
Head, age 29
York-County, South Carolina · implied b. ~1911 — 3 household members
| Surname | Caldwell |
| Given Name | William J. B. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | Bethel Township |
| 1935 Residence (County) | York |
| Occupation | laborer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | South Carolina |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
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 John Caldwell (~0.92 confidence) and mother Lula Caldwell (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Caldwell
b. ~1861
Source father
● Household
· direct · ~0.92
Mother
Lula Caldwell
b. ~1874
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Caldwell
Head · 1940 · age 29 · b. ~1911 · South Carolina
★ 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 — York-County, South Carolina
Open full size
1940 US Federal Census — York-County, South Carolina
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03845-00006)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lillian Walker | 9 | daughter | — | South Carolina |
| 42 | Johnnie B Walker | 7 | daughter | — | South Carolina |
| 43 | Merman L Walker | 5 | daughter | — | South Carolina |
| 44 | Netty G Walker | 4 | daughter | — | South Carolina |
| 45 | Clyde F Walker | 1 | son | — | South Carolina |
| 46 | Edward J. B. Patrick | 50 | Head | Manager | South Carolina |
| 47 | Mabel Patrick | 48 | wife | — | South Carolina |
| 48 | Martha Patrick | 19 | daughter | — | South Carolina |
| 49 | Lace Clemmer | 38 | Head | Wage Hand | South Carolina |
| 50 | Edgar M Clemmer | 40 | Head | Laborer | South Carolina |
| 51 | Gertrude Clemmer | 38 | Wife | Laborer | South Carolina |
| 52 | Manuel Adams | 34 | Head | Wage Hand | South Carolina |
| 53 | Irene Adams | 28 | Wife | Laborer | South Carolina |
| 54 | Jesse Williams | 43 | Head | Laborer | South Carolina |
| 55 | Georgia Williams | 40 | Wife | Laborer | South Carolina |
| 56 | Charles E. Ratchford | 11 | Nephew | — | South Carolina |
| 57 | Nathaniel Mckinney | 6 | Nephew | — | South Carolina |
| 58 | Marnie Wallace | 4 | Nephew | — | South Carolina |
| 59 | William J. B. Caldwell THIS PERSON | 29 | Head | Laborer | South Carolina |
| 60 | Marshall Caldwell | 27 | Wife | — | South Carolina |
| 61 | Richard J. Caldwell | 3 | son | — | South Carolina |
| 62 | Guy Cook | 26 | Head | Laborer | South Carolina |
| 63 | Blanche Cook | 20 | wife | — | South Carolina |
| 64 | Haskell Floyd | 23 | Head | Laborer | South Carolina |
| 65 | Della M Floyd | 24 | wife | Laborer | South Carolina |
| 66 | John B. B. Kithcart | 59 | Head | Laborer | South Carolina |
| 67 | Annie Kithcart | 49 | wife | Laborer | South Carolina |
| 68 | Zimie Cook | 33 | Nephew | Laborer | South Carolina |
| 69 | Robert Floyd | 14 | Nephew | — | South Carolina |
| 70 | Nellie Ratchford | 4 | Niece | — | South Carolina |
| 71 | John B. Riddle | 60 | Head | Laborer | South Carolina |
| 72 | Cara Riddle | 52 | wife | Laborer | South Carolina |
| 73 | James Riddle | 14 | son | Laborer | South Carolina |
| 74 | Sam Riddle | 11 | son | — | South Carolina |
| 75 | Thomas Riddle | 8 | son | — | South Carolina |
| 76 | Edward N. B. Caldwell | 55 | Head | Laborer | South Carolina |
| 77 | Robbie B. Caldwell | 53 | wife | — | South Carolina |
| 78 | Frances L. Caldwell | 31 | daughter | Teacher | South Carolina |
| 79 | Joe L. Caldwell | 22 | son | Laborer | South Carolina |
| 80 | H Jenkins | 19 | son | Laborer | South Carolina |
Pedigree Summary
William
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)