JC
John Caldwell — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Leavenworth, Kansas
Our Model Tree links this John Caldwell across the 1910, 1920 and 1930 US Censuses in Leavenworth, Kansas (XGBoost, ~Confirmed) — first a head (b.~1883), then head of a 4-person household.
Age 47
b. ~1883
Male
Head
Born: Kansas
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Leavenworth, Kansas |
| Surname | Caldwell |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Kansas |
| Age at First Marriage | 23 |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Additional Details | |
| Occupation | Blacksmith |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 800 |
| Radio Set | R |
| Veteran | No |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Occupation | Blacksmith |
| Township / Ward | Tonganoxie City |
| Est. Birth Year | ~1883 |
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 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Caldwell | Head | — | 47 | ~1883 |
| Mattie Caldwell | Other | — | 42 | ~1888 |
| Homer Caldwell | Son | — | 20 | ~1910 |
| Leo Caldwell | Son | — | 18 | ~1912 |
Census Appearances
1910
Leavenworth, Kansas
Head, age 27
Leavenworth, Kansas · implied b. ~1883 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Caldwell |
| Given Name | John Jr. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Kansas |
| Years Married | 4 |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Occupation | Blacksmith |
| Industry | Shop |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1920
Leavenworth, Kansas
Head, age 36
Leavenworth, Kansas · implied b. ~1884 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Caldwell |
| Given Name | John Jr. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Kansas |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Occupation | Blacksmith |
| Industry | Own Shop |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1930
Leavenworth, Kansas
Head, age 47
Leavenworth, Kansas · implied b. ~1883 — 4 household members
| Surname | Caldwell |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Kansas |
| Age at First Marriage | 23 |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Occupation | Blacksmith |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 800 |
| Radio Set | R |
| Veteran | No |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 (1910, 1920 and 1930) in Leavenworth, Kansas, using XGBoost record linkage.
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This person
Anchor record
John Caldwell
Head · 1930 · age 47 · b. ~1883 · Kansas
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Leavenworth, Kansas
Open full size
1930 US Federal Census — Leavenworth, Kansas
Page Contents
50 people indexed on this census page (ia:1930:15thcensus708usce:0437)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Evelyn Pankratz | 18 | daughter | None | Kansas |
| 2 | Paul F Lipacher | 27 | Head | Mechanic | Missouri |
| 3 | Frances Lipacher | 26 | wife | None | Tennessee |
| 4 | Paul F Jr Lipacher | 4 | son | None | Missouri |
| 5 | J. Robert Christian | 36 | Head | Laborer | Missouri |
| 6 | Asa Christian | 35 | wife | — | Missouri |
| 7 | Mildred Christian | 11 | daughter | — | Missouri |
| 8 | Jack Christian | 10 | son | — | Missouri |
| 9 | Roberta Christian | 8 | daughter | — | Kansas |
| 10 | Robert Jr Christian | 6 | son | — | Kansas |
| 11 | Ed W Harris | 47 | Head | Farmer | Kansas |
| 12 | And I Harris | 31 | wife-H | None | Kansas |
| 13 | Estella Harris | 11 | daughter | None | Idaho |
| 14 | Wm Lee | 30 | Roomer | Laborer | Kansas |
| 15 | Henry Hicks | 39 | Head | Truck Driver | Kansas |
| 16 | Laura Hicks | 45 | wife-H | None | Kansas |
| 17 | Daniel Walker | 5 | step-son | None | Kansas |
| 18 | Ross Lambert | 27 | Head | Laborer | Arkansas |
| 19 | Verna Lambert | 22 | wife-H | None | Missouri |
| 20 | Mildred Lambert | 5 | daughter | None | Kansas |
| 21 | Audra Lambert | 3 | daughter | None | Kansas |
| 22 | Milton Bowman | 53 | Head | Farmer | Indiana |
| 23 | Richard Bowman | 32 | son | Repairer | Kansas |
| 24 | R. M. Jr Bowman | 10 | son | None | Kansas |
| 25 | John Caldwell THIS PERSON | 47 | Head | Blacksmith | Kansas |
| 26 | Mattie Caldwell | 42 | wife-H | None | Kansas |
| 27 | Homer Caldwell | 20 | son | Laborer | Kansas |
| 28 | Leo Caldwell | 18 | son | None | Kansas |
| 29 | Roy Reynolds | 36 | Head | Laborer | Kansas |
| 30 | Lucile Reynolds | 26 | wife-H | None | Kansas |
| 31 | Armentha Reynolds | 10 | daughter | None | Kansas |
| 32 | Joseph B Reynolds | 3 | son | None | Kansas |
| 33 | Harry Turner | 60 | Head | Agent | New York |
| 34 | Mabel Turner | 50 | wife-H | None | Kansas |
| 35 | John Turner | 28 | son | Mechanic | Kansas |
| 36 | Bernard Turner | 9 | son | None | Kansas |
| 37 | Mary Turner | 1 | daughter | None | Kansas |
| 38 | Harry Arthur Turner | 25 | Head | Salesman | Kansas |
| 39 | Etta Turner | 22 | wife-H | None | Missouri |
| 40 | Norman Turner | 3 | son | None | Kansas |
| 41 | Wirden Turner | 2 | son | None | Kansas |
| 42 | Herbert Hopkins | 22 | Head | Clerk | Kansas |
| 43 | Anna Hopkins | 22 | wife-H | None | Missouri |
| 44 | Milton Castiel | 54 | Head | Laborer | Kansas |
| 45 | Grace Castiel | 39 | wife-H | None | Kansas |
| 46 | Ralph Castiel | 19 | son | Truck Driver | Kansas |
| 47 | David Castiel | 15 | son | None | Kansas |
| 48 | Bessie Marie Castiel | 6 | daughter | None | Kansas |
| 49 | Anna Lenahan | 69 | Head-H | None | Kansas |
| 50 | Margaret Lenahan | 45 | Sister | None | Kansas |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)