JH
John Hahn — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Clinton, Iowa
Our Model Tree links this John Hahn across the 1920 and 1930 US Censuses in Clinton, Iowa (XGBoost, ~Confirmed) — first a head (b.~1887), then head of a 6-person household.
Age 43
b. ~1887
Male
Head
Born: Iowa
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Clinton, Iowa |
| Surname | Hahn |
| Given Name | John H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | E |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | Orange Township Part Of |
| Est. Birth Year | ~1887 |
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 |
|---|---|---|---|---|
| Mary Hahn | Daughter | — | 4 | ~1926 |
| Harold Hahn | Son | — | 14 | ~1916 |
| John Hahn | Son | — | 7 | ~1923 |
| Josephine Hahn | Spouse | — | 37 | ~1893 |
| John Hahn | Head | — | 43 | ~1887 |
| Marcella Hahn | Daughter | — | 12 | ~1918 |
Census Appearances
1920
Clinton, Iowa
Head, age 33
Clinton, Iowa · implied b. ~1887 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hahn |
| Given Name | John H |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | general farm |
| Industry | farm |
| Class of Worker | O |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Clinton, Iowa
Head, age 43
Clinton, Iowa · implied b. ~1887 — 6 household members
| Surname | Hahn |
| Given Name | John H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | E |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| 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 Hahn across 2 US Census years (1920 and 1930) in Clinton, Iowa, using XGBoost record linkage.
Show:
This person
Anchor record
John Hahn
Head · 1930 · age 43 · b. ~1887 · Iowa
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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 — Clinton, Iowa
Open full size
1930 US Federal Census — Clinton, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel650:0216)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Leslie H Barber | 31 | Head | Farmer | Iowa |
| 52 | Alma Barber | 28 | Wife | — | Iowa |
| 53 | Mary Barber | 8 | Daughter | — | Iowa |
| 54 | Norman Barber | 5 | Son | — | Iowa |
| 55 | Alfred Schlotfeldt | 65 | Head | Farmer | Iowa |
| 56 | Arnold Schlotfeldt | 20 | Son | — | Iowa |
| 57 | Alta M Schlotfeldt | 15 | Daughter | — | Iowa |
| 58 | Geo W Telford | 39 | Head | Farmer | England |
| 59 | Phylis Telford | 35 | Wife | — | England |
| 60 | Constance Telford | 8 | Daughter | — | Iowa |
| 61 | Marion Telford | 5 | Daughter | — | Iowa |
| 62 | Valdene Telford | 0 | Daughter | — | Iowa |
| 63 | O F Kellenbach | 41 | Head | Farmer | Iowa |
| 64 | Agnes Kellenbach | 33 | Wife | — | Iowa |
| 65 | Marlys Kellenbach | 7 | Daughter | — | Iowa |
| 66 | A F Barber | 55 | Head | Farmer | Iowa |
| 67 | Bina Barber | 51 | Wife | — | Iowa |
| 68 | Lois A Barber | 19 | Daughter | — | Iowa |
| 69 | Ruth A Barber | 17 | Daughter | — | Iowa |
| 70 | Wayne D Barber | 15 | Son | — | Iowa |
| 71 | John H Hahn THIS PERSON | 43 | Head | Farmer | Iowa |
| 72 | Josephine Hahn | 37 | Wife | — | Iowa |
| 73 | Harold H Hahn | 14 | Son | — | Iowa |
| 74 | Marcella Hahn | 12 | Daughter | — | Iowa |
| 75 | John F Hahn | 7 | Son | — | Iowa |
| 76 | Mary L Hahn | 4 | Daughter | — | Iowa |
| 77 | Chris Meints | 72 | Head | Farmer | Germany |
| 78 | Sadie Meints | 34 | Daughter | — | Iowa |
| 79 | G W Barber | 82 | Head | — | Iowa |
| 80 | Bruce G Barber | 49 | Son | Farmer | Iowa |
| 81 | Frieda Barber | 31 | Daughter-in-law | — | Iowa |
| 82 | William J Schroeder | 40 | Head | Farmer | Iowa |
| 83 | Leonell Schroeder | 37 | Wife | — | Iowa |
| 84 | Wylma Schroeder | 15 | Daughter | — | Iowa |
| 85 | Carol Schroeder | 10 | Daughter | — | Iowa |
| 86 | Russell Lunn | 21 | Lodger | Laborer | Indiana |
| 87 | John Platt | 41 | Head | Farmer | Iowa |
| 88 | Bertha Platt | 39 | Wife | — | Iowa |
| 89 | Emerson Platt | 18 | Son | Laborer | Iowa |
| 90 | Arzelle Platt | 12 | Son | — | Iowa |
| 91 | Lester Platt | 6 | Son | — | Iowa |
| 92 | Merlyn Platt | 4 | Son | — | Iowa |
| 93 | Fred Thess | 48 | Brother-in-law | Laborer | Iowa |
| 94 | J P Miller | 60 | Head | Farmer | Iowa |
| 95 | Ellert E Miller | 46 | Head | Farmer | Iowa |
| 96 | Adra Miller | 50 | Wife | — | Iowa |
| 97 | Howard Miller | 24 | Son | Laborer | Iowa |
| 98 | Gertrude Miller | 20 | Daughter | — | Iowa |
| 99 | Gladys Miller | 18 | Daughter | — | Iowa |
| 100 | Kathleen Miller | 17 | Daughter | — | Iowa |
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)