WK
William Klein — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Black Hawk, Iowa
Our Model Tree links this William Klein across the 1930 and 1940 US Censuses in Black Hawk, Iowa (XGBoost, ~Confirmed) — first a head (b.~1887), then head of a 10-person household.
Age 43
b. ~1887
Male
Head
Born: Iowa
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Black Hawk, Iowa |
| Surname | Klein |
| Given Name | William S. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 22 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Wisconsin |
| Additional Details | |
| Occupation | Laborer |
| Industry | Sand Dredge |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | $15 |
| Veteran | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Laborer |
| Township / Ward | Gilbertville Town |
| 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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Alma Klein | Spouse | — | 41 | ~1889 |
| Alfred Klein | Son | — | 8 | ~1922 |
| Mary Klein | Daughter | — | 4 | ~1926 |
| William Klein | Head | — | 43 | ~1887 |
| Hazel Klein | Daughter | — | 12 | ~1918 |
| James Klein | Son | — | 2 | ~1928 |
| John Klein | Son | — | 11 | ~1919 |
| Patricia Klein | Daughter | — | 6 | ~1924 |
| Bernadette Klein | Daughter | — | 13 | ~1917 |
| Irene Klein | Daughter | — | 15 | ~1915 |
Census Appearances
1930
Black Hawk, …
Head, age 43
Black Hawk, Iowa · implied b. ~1887 — 10 household members
| Surname | Klein |
| Given Name | William S. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 22 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Wisconsin |
| Occupation | Laborer |
| Industry | Sand Dredge |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | $15 |
| Veteran | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Black-Hawk-County, Iowa
Head, age 53
Black-Hawk-County, Iowa · implied b. ~1887 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kleine |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Waterloo |
| 1935 Residence (County) | Black Hawk |
| Occupation | 78 |
| Industry | Pick-pock |
| Class of Worker | Rock Island RR |
| Hours Worked | 3 |
| Highest Grade | 7 |
| 1935 Residence | Iowa |
| 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 William Klein across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Klein
Head · 1930 · age 43 · b. ~1887 · Iowa
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Black Hawk, Iowa
Open full size
1930 US Federal Census — Black Hawk, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel642:0392)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Barbara Phillips | 78 | Head | — | Germany |
| 2 | Ethyl P. Garner | 20 | Granddaughter | Servant | Iowa |
| 3 | Peter Wester | 70 | Head | — | Luxemburg |
| 4 | Margaret Wester | 65 | Wife | — | Iowa |
| 5 | Anna M. Ahles | 56 | Head | — | Iowa |
| 6 | Mary Weyland | 63 | Head | — | Iowa |
| 7 | Mary Solares | 70 | Head | — | Illinois |
| 8 | Clement Wester | 73 | Head | — | Luxemburg |
| 9 | Margaret Wester | 66 | Wife | — | Illinois |
| 10 | Matthew E. Gottesleben | 66 | Head | Organist | Germany |
| 11 | Jake Schmit | 57 | Head | Laborer | Iowa |
| 12 | Mary Schmit | 51 | Wife | — | Iowa |
| 13 | Agnes M. Schmit | 23 | Daughter | Servant | Iowa |
| 14 | Louis M. Schmit | 16 | Son | Salesman | Iowa |
| 15 | Robert J. Schmit | 7 | Son | — | Iowa |
| 16 | John Wagner | 75 | Brother-in-law | — | Illinois |
| 17 | Anna M. Wagner | 69 | Mother-in-law | — | New York |
| 18 | Peter Hemmer | 66 | Head | — | Germany |
| 19 | Barbara M. Hemmer | 68 | Wife | — | Germany |
| 20 | Nicholas A. Hemmer | 36 | Son | Janitor | Iowa |
| 21 | Anna Felten | 51 | Head | — | Iowa |
| 22 | Susan Gales | 80 | Head | — | Luxemburg |
| 23 | Raphael M. Gales | 26 | Grandson | Merchant | Iowa |
| 24 | Matt Kettman | 50 | Head | Farmer | Illinois |
| 25 | Anna Kettman | 45 | Wife | — | Iowa |
| 26 | Joseph J. Kettman | 8 | Son | — | Iowa |
| 27 | Bernice L. Kettman | 5 | Daughter | — | Iowa |
| 28 | Jerome L. Kettman | 2 | Son | — | Iowa |
| 29 | Mary S. Stubenrauch | 38 | Head | — | Iowa |
| 30 | Francis J. Stubenrauch | 13 | Son | — | Iowa |
| 31 | Richard J. Stubenrauch | 10 | Son | — | South Dakota |
| 32 | Mary B. Stubenrauch | 8 | Daughter | — | South Dakota |
| 33 | Cletus J. Stubenrauch | 6 | Son | — | South Dakota |
| 34 | Jacob Schmitz | 54 | Head | — | Iowa |
| 35 | Mary M. Schmitz | 24 | Daughter | Servant | Iowa |
| 36 | George J. Schmitz | 21 | Son | Laborer | Iowa |
| 37 | Herbert C. Schmitz | 20 | Son | Carpenter | Iowa |
| 38 | Chris W. Gersch | 33 | Head | Salesman | Iowa |
| 39 | Genevieve Gersch | 23 | Wife | — | Iowa |
| 40 | Richard L. Gersch | 2 | Son | — | Iowa |
| 41 | William S. Klein THIS PERSON | 43 | Head | Laborer | Iowa |
| 42 | Alma P. Klein | 41 | Wife | Saleslady | Iowa |
| 43 | Irene J. Klein | 15 | Daughter | Servant | Iowa |
| 44 | Bernadette Klein | 13 | Daughter | — | Iowa |
| 45 | Hazel L. Klein | 12 | Daughter | — | Iowa |
| 46 | John W. Klein | 11 | Son | — | Iowa |
| 47 | Alfred J. Klein | 8 | Son | — | Iowa |
| 48 | Patricia A. Klein | 6 | Daughter | — | Iowa |
| 49 | Mary E. Klein | 4 | Daughter | — | Iowa |
| 50 | James J. Klein | 2 | Son | — | 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)