JC
John Caldwell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lake-County, Florida
Our Model Tree links this John Caldwell across the 1920, 1930 and 1940 US Censuses in Lake-County, Florida (XGBoost, ~Confirmed) — first a head (b.~1863), then head of a 4-person household.
Age 77
b. ~1863
Male
Head
Born: Georgia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Lake-County, Florida |
| Surname | Caldwell |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 77 |
| Marital Status | Married |
| Birthplace | Georgia |
| 1935 Residence (City) | nr |
| 1935 Residence (County) | Lake |
| Additional Details | |
| Class of Worker | 1000 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
| Township / Ward | Nr |
| Est. Birth Year | ~1863 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| John Caldwell | Head | — | 77 | ~1863 |
| Leo Cook | Other | — | 55 | ~1885 |
| John Caldwell | Son | — | 36 | ~1904 |
| Boyce Caldwell | Spouse | — | 81 | ~1859 |
Census Appearances
1920
Lake, Florida
Head, age 61
Lake, Florida · implied b. ~1859 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Caldwell |
| Given Name | John W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Georgia |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | Alabama |
| Occupation | Farmer |
| Industry | Truck Farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
1930
Lake, Florida
Head, age 71
Lake, Florida · implied b. ~1859 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Caldwell |
| Given Name | John L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 71 |
| Marital Status | Married |
| Birthplace | Georgia |
| Age at First Marriage | 25 |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Georgia |
| Occupation | Fruit grower |
| Industry | Citrus grove |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
1940
Lake-County, Florida
Head, age 77
Lake-County, Florida · implied b. ~1863 — 4 household members
| Surname | Caldwell |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 77 |
| Marital Status | Married |
| Birthplace | Georgia |
| 1935 Residence (City) | nr |
| 1935 Residence (County) | Lake |
| Class of Worker | 1000 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
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 John Caldwell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Caldwell
Head · 1940 · age 77 · b. ~1863 · Florida
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Lake-County, Florida
Open full size
1940 US Federal Census — Lake-County, Florida
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00595-00191)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles Ramen | 25 | Son | Teller | Florida |
| 2 | Charles Ramen | 22 | Son | — | Florida |
| 3 | Radford Collins | 49 | Head | — | Tennessee |
| 4 | Vernie Collins | 45 | Wife | Floorwoman | Kansas |
| 5 | Orval Collins | 21 | Son | Waiter | Kansas |
| 6 | Lela Collins | 17 | Daughter | — | Florida |
| 7 | Calvin Collins | 14 | Son | — | Kansas |
| 8 | Dean Collins | 12 | Son | — | Kansas |
| 9 | Jean Collins | 9 | Daughter | — | Kansas |
| 10 | June Collins | 9 | Daughter | — | Kansas |
| 11 | William Newman | 49 | Head | Foreman | Kentucky |
| 12 | Ethel Newman | 46 | Wife | — | Georgia |
| 13 | Evelyn Newman | 7 | Daughter | — | Florida |
| 14 | Franklin Hatfield | 27 | Head | Dentist | Kansas |
| 15 | Adelaide Hatfield | 24 | Wife | — | New York |
| 16 | Franklin Jr Hatfield | 1 | Son | No | Kansas |
| 17 | Thomas Caldwell | 47 | Head | Foreman | Georgia |
| 18 | Ida Lee Caldwell | 43 | Wife | School Teacher | Georgia |
| 19 | Charles Caldwell | 18 | Son | — | Florida |
| 20 | Lilly Mullins | 74 | Mother | — | Georgia |
| 21 | John Caldwell THIS PERSON | 77 | Head | — | Georgia |
| 22 | Boyce Caldwell | 81 | Wife | — | Georgia |
| 23 | Leo Cook | 55 | Lodger | — | Georgia |
| 24 | John Caldwell | 36 | Son | Foreman | Georgia |
| 25 | Hubert Carleton | 70 | Head | — | Georgia |
| 26 | Mamie Carleton | 67 | Wife | — | Georgia |
| 27 | Morgan Foster | 58 | Head | Carpenter | Louisiana |
| 28 | Lela Foster | 58 | Wife | — | Alabama |
| 29 | Lera Foster | 34 | Daughter | — | Alabama |
| 30 | Allie Foster | 30 | Daughter | Packer | Alabama |
| 31 | Melton Foster | 13 | Son | Grove Work | Florida |
| 32 | Jessie Lee | 41 | Head | Packer | Florida |
| 33 | Sarah Lee | 34 | Wife | Packer | Mississippi |
| 34 | Robert Lee | 2 | Son | No | Florida |
| 35 | Rudolph Kline | 40 | Head | Common Labor | Kentucky |
| 36 | Richard Kline | 84 | Father | — | Ohio |
| 37 | Armie Cross | 60 | Head | Packer | Kentucky |
| 38 | Charlie Finney | 49 | Head | Foreman | Georgia |
| 39 | Arrie Finney | 38 | Wife | — | Florida |
| 40 | Martha Finney | 12 | Daughter | — | Florida |
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)