JC
John Campbell — 1930 US Census Record
Model Tree available1930 United States Federal Census · Henry, Iowa
Our Model Tree links this John Campbell across the 1910, 1920 and 1930 US Censuses in Henry, Iowa (XGBoost, ~Confirmed), with identified parents Clark & Clark — first a son (b.~1909), then head of a 5-person household.
Age 21
b. ~1909
Male
Son
Born: Iowa
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Henry, Iowa |
| Surname | Campbell |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Laborer |
| Township / Ward | Marion 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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Virginia Campbell | Daughter | — | 13 | ~1917 |
| Clark Campbell | Head | — | 48 | ~1882 |
| Dale Campbell | Son | — | 19 | ~1911 |
| John Campbell | Son | — | 21 | ~1909 |
| Myrtle Campbell | Spouse | — | 47 | ~1883 |
Census Appearances
1910
Henry, Iowa
Son, age
Henry, Iowa · implied b. ~1910 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Henry, Iowa
Son, age 10
Henry, Iowa · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | John E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Henry, Iowa
Son, age 21
Henry, Iowa · implied b. ~1909 — 5 household members
| Surname | Campbell |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Campbell across 3 US Census years (1910, 1920 and 1930) in Henry, Iowa, using XGBoost record linkage. Identified parents: father Clark Campbell (~0.92 confidence) and father Clark Campbell (~0.92 confidence) and father Valetie Campbell (~0.92 confidence) and mother Mabel Campbell (~0.92 confidence) and mother Myrtle Campbell (~0.92 confidence) and mother Myrtle Campbell (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Clark Campbell
b. ~1882
Source father
● Household
· direct · ~0.92
Father
Clark Campbell
b. ~1883
Source father
● Household
· direct · ~0.92
Father
Valetie Campbell
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Mabel Campbell
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Myrtle Campbell
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Myrtle Campbell
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Campbell
Son · 1930 · age 21 · b. ~1909 · Iowa
★ You are viewing this record
Sibling
Virginia Campbell
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dale Campbell
Sibling · 1930 · age 19
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 — Henry, Iowa
Open full size
1930 US Federal Census — Henry, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel658:0917)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Clark Campbell | 48 | Head | General Farmer | Iowa |
| 52 | Myrtle Campbell | 47 | Wife | — | Iowa |
| 53 | John Campbell THIS PERSON | 21 | Son | Laborer | Iowa |
| 54 | Dale Campbell | 19 | Son | — | Iowa |
| 55 | Virginia Campbell | 13 | Daughter | — | Iowa |
| 56 | W. H. White | 46 | Head | Farmer | Illinois |
| 57 | Bessie White | 44 | Wife | — | Illinois |
| 58 | Robert White | 17 | Son | — | Illinois |
| 59 | Fred Haleh | 29 | Head | Farmer | Iowa |
| 60 | Ellen Haleh | 28 | Wife | — | Iowa |
| 61 | Betty L. Haleh | 9 | Daughter | — | Iowa |
| 62 | Mary J. Haleh | 7 | Daughter | — | Iowa |
| 63 | Wm G. Haleh | 5 | Son | — | Iowa |
| 64 | Richard Haleh | 3 | Son | — | Iowa |
| 65 | Albert Johnson | 31 | Head | Laborer | Indiana |
| 66 | Eva Johnson | 33 | Wife | — | Indiana |
| 67 | Howard Johnson | 14 | Son | — | Indiana |
| 68 | Lewalen Johnson | 12 | Son | — | Indiana |
| 69 | Mary L. Johnson | 7 | Daughter | — | Iowa |
| 70 | Angus Moore | 35 | Head | Farmer | Iowa |
| 71 | Eva Moore | 31 | Wife | — | Iowa |
| 72 | Jean L. Moore | 7 | Daughter | — | Iowa |
| 73 | Ray Ranch | 43 | Head | Farmer | Iowa |
| 74 | Fern Ranch | 34 | Wife | — | Iowa |
| 75 | Alvin Ranch | 13 | Son | — | Iowa |
| 76 | Emery Ranch | 13 | Son | — | Iowa |
| 77 | Wilbur Ranch | 4 | Son | — | Iowa |
| 78 | J. D. Zimmerman | 37 | Head | Farmer | Louisiana |
| 79 | Pearl L. Zimmerman | 35 | Wife | — | Illinois |
| 80 | J. Elmer Zimmerman | 14 | Son | — | Illinois |
| 81 | John Crable | 46 | Lodger | Laborer | Iowa |
| 82 | Cliff Upton | 73 | Head | Farmer | Iowa |
| 83 | Amanda E. Upton | 69 | Wife | — | Iowa |
| 84 | C. E. Bonner | 53 | Head | Farmer | Ohio |
| 85 | Ada M. Bonner | 48 | Wife | — | Iowa |
| 86 | Frank Bonner | 24 | Son | Farmer | Iowa |
| 87 | Flora Bonner | 23 | Daughter | — | Iowa |
| 88 | Vera Bonner | 17 | Daughter | Servant | Iowa |
| 89 | Francis Bonner | 11 | Daughter | — | Iowa |
| 90 | Edgar W. Bonner | 2 | Grandson | — | Iowa |
| 91 | Ruben L. Upton | 38 | Head | Farmer | Iowa |
| 92 | Ethel Upton | 27 | Wife | — | Iowa |
| 93 | Roger Upton | 2 | Son | — | Iowa |
| 94 | John H. Moore | 59 | Head | Farmer | Illinois |
| 95 | Mollie R. Moore | 59 | Wife | — | Illinois |
| 96 | Howard Moore | 36 | Head | Farmer | Illinois |
| 97 | Alman Moore | 33 | Wife | — | Illinois |
| 98 | Sadie Banning | 63 | Head | — | Iowa |
| 99 | Hannah Banning | 73 | Sister | — | Iowa |
| 100 | — | None | — | — | — |
Pedigree Summary
John + 2 siblings
Gen 1 · 6 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)