JC
John Carroll — 1930 US Census Record
Model Tree available1930 United States Federal Census · Calumet, Wisconsin
Our Model Tree links this John Carroll across the 1910, 1920 and 1930 US Censuses in Calumet, Wisconsin (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1909), then head of a 6-person household.
Age 21
b. ~1909
Male
Son
Born: Wisconsin
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Calumet, Wisconsin |
| Surname | Carroll |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Additional Details | |
| Occupation | Working |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | Working |
| Township / Ward | Rantoul Township |
| Est. Birth Year | ~1909 |
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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Provitt Carroll | Daughter | — | 29 | ~1901 |
| Clara Carroll | Daughter | — | 27 | ~1903 |
| John Carroll | Head | — | 60 | ~1870 |
| Elizabeth Carroll | Other | — | 57 | ~1873 |
| John Carroll | Son | — | 21 | ~1909 |
| George Carroll | Son | — | 30 | ~1900 |
Census Appearances
1910
Calumet, Wisconsin
Son, age
Calumet, Wisconsin · implied b. ~1910 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carroll |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Can Read | No |
| Can Write | No |
| Speaks English | English |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1920
Calumet, Wisconsin
Son, age 11
Calumet, Wisconsin · implied b. ~1909 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carroll |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1930
Calumet, Wisconsin
Son, age 21
Calumet, Wisconsin · implied b. ~1909 — 6 household members
| Surname | Carroll |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Occupation | Working |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 Carroll across 3 US Census years (1910, 1920 and 1930) in Calumet, Wisconsin, using XGBoost record linkage. Identified parents: father John Carroll (~0.92 confidence) and father John Carroll (~0.92 confidence) and mother Isabelle Carroll (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Carroll
b. ~1863
Source father
● Household
· direct · ~0.92
Father
John Carroll
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Isabelle Carroll
b. ~1873
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Carroll
Son · 1930 · age 21 · b. ~1909 · Wisconsin
★ You are viewing this record
Sibling
George Carroll
Sibling · 1930 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Provitt Carroll
Sibling · 1930 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clara Carroll
Sibling · 1930 · age 27
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
1930 US Federal Census — Calumet, Wisconsin
Open full size
1930 US Federal Census — Calumet, Wisconsin
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2563unit:0877)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Henry Krueger | 52 | Head | Farmer | Wisconsin |
| 2 | Linda Krueger | 43 | Wife-H | — | Wisconsin |
| 3 | Arthur Krueger | 25 | Son | Working | Wisconsin |
| 4 | Edwin Krueger | 23 | Son | Helping | Wisconsin |
| 5 | Elsa Krueger | 20 | Daughter | Helping | Wisconsin |
| 6 | Helmuth Krueger | 17 | Son | Helping | Wisconsin |
| 7 | Leona Krueger | 14 | Daughter | — | Wisconsin |
| 8 | Erma Krueger | 7 | Daughter | — | Wisconsin |
| 9 | James Hephner | 53 | Head | Farmer | Wisconsin |
| 10 | Mary Hephner | 53 | Wife-H | — | Wisconsin |
| 11 | Thomas Hephner | 22 | Son | Working | Wisconsin |
| 12 | James Hephner | 6 | Gr. son | — | Wisconsin |
| 13 | Mary Jane Hephner | 4 | Gr. son | — | Wisconsin |
| 14 | Ray Hephner | 24 | Son | Helping | Wisconsin |
| 15 | John Jakowski | 46 | Head | Farmer | Connecticut |
| 16 | Martha Jakowski | 42 | Wife-H | — | Wisconsin |
| 17 | Amanda Jakowski | 22 | Daughter | Helping | Wisconsin |
| 18 | Harry Jakowski | 20 | Son | Working | Wisconsin |
| 19 | Adolph Kawanenburg | 55 | Head | Farmer | Wisconsin |
| 20 | Bertha Kawanenburg | 50 | Wife-H | — | Wisconsin |
| 21 | Armond Kawanenburg | 14 | Son | — | Wisconsin |
| 22 | Louisa Albers | 86 | Mother-law | — | Germany |
| 23 | Herman Jentch | 53 | Head | Farmer | Wisconsin |
| 24 | Appsa Jentch | 51 | Wife-H | — | Germany |
| 25 | Frank Jentch | 20 | Son | Worker | Wisconsin |
| 26 | Herman Jentch | 18 | Son | Worker | Wisconsin |
| 27 | Robert Jentch | 16 | Son | — | Wisconsin |
| 28 | Clarence Jentch | 13 | Son | — | Wisconsin |
| 29 | Walter Jentch | 12 | Son | — | Wisconsin |
| 30 | Roland Jentch | 3 | Gr. son | — | Wisconsin |
| 31 | Louis Duchow | 44 | Head | Farmer | Wisconsin |
| 32 | Frieda Duchow | 35 | Wife-H | — | Wisconsin |
| 33 | Raymond Duchow | 15 | Son | Worker | Wisconsin |
| 34 | Leona Duchow | 12 | Daughter | — | Wisconsin |
| 35 | Myrtle Duchow | 8 | Daughter | — | Wisconsin |
| 36 | Frank Duchow | 6 | Son | — | Wisconsin |
| 37 | Leroy Duchow | 2 | Son | — | Wisconsin |
| 38 | John Paulsen | 47 | Head | Farmer | Wisconsin |
| 39 | Magdalena Paulsen | 46 | Wife-H | — | Wisconsin |
| 40 | Grace Paulsen | 21 | Son | Working | Wisconsin |
| 41 | Saga Hanch | 70 | Sister | — | Germany |
| 42 | John J. Carroll | 60 | Head | Farmer | Wisconsin |
| 43 | Elizabeth Carroll | 57 | Wife-H | — | Wisconsin |
| 44 | George Carroll | 30 | Son | Helping | Wisconsin |
| 45 | Provitt Carroll | 29 | Daughter | Teacher | Wisconsin |
| 46 | Clara Carroll | 27 | Daughter | Helping | Wisconsin |
| 47 | John Carroll THIS PERSON | 21 | Son | Working | Wisconsin |
| 48 | William Kennedy | 70 | Head | Farmer | Wisconsin |
| 49 | Catherine Kennedy | 65 | Wife-H | — | Wisconsin |
| 50 | Lela Kennedy | 40 | Daughter | — | Wisconsin |
Pedigree Summary
John + 3 siblings
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 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)