WK
William Koch — 1900 US Census Record
Linked across censuses1900 United States Federal Census · Milwaukee, Wisconsin
Our Model Tree links this William Koch across the 1900 and 1910 US Censuses in Milwaukee, Wisconsin (XGBoost, ~Confirmed) — first a son (b.~1894), then head of a 8-person household.
Age 6
b. ~1894
Male
Son
Born: Wisconsin
Single
1900 Census Record Details
| Census Year | 1900 |
| Location | Milwaukee, Wisconsin |
| Surname | Koch |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Birth Month | Nov |
| Birth Year | 1894 |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Additional Details | |
| Occupation | At school |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | At School |
| Township / Ward | City Of Milwaukee |
| Est. Birth Year | ~1894 |
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.
8 people recorded at the same address in the 1900 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Koch | Son | — | 6 | ~1894 |
| Wilhelmina Koch | Spouse | — | 36 | ~1864 |
| Adila Koch | Daughter | — | 11 | ~1889 |
| William Nolte | Other | — | 45 | ~1855 |
| Hilda Koch | Daughter | — | 14 | ~1886 |
| August Koch | Head | — | 41 | ~1859 |
| Carl Koch | Son | — | 10 | ~1890 |
| Alma Koch | Daughter | — | 17 | ~1883 |
Census Appearances
1900
Milwaukee, Wisconsin
Son, age 6
Milwaukee, Wisconsin · implied b. ~1894 — 8 household members
| Surname | Koch |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Birth Month | Nov |
| Birth Year | 1894 |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Occupation | At school |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1910
Milwaukee, Wisconsin
Son, age 15
Milwaukee, Wisconsin · implied b. ~1895 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Koch |
| Given Name | Willie |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| 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 William Koch across 2 US Census years (1900 and 1910) in Milwaukee, Wisconsin, using XGBoost record linkage.
Show:
This person
Anchor record
William Koch
Son · 1900 · age 6 · b. ~1894 · Wisconsin
★ You are viewing this record
Sibling
Adila Koch
Sibling · 1900 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carl Koch
Sibling · 1900 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hilda Koch
Sibling · 1900 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alma Koch
Sibling · 1900 · age 17
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
1900 US Federal Census — Milwaukee, Wisconsin
Open full size
1900 US Federal Census — Milwaukee, Wisconsin
Page Contents
50 people indexed on this census page (ia:1900:12thcensusofpopu1806unit:0392)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Dora Bell | 26 | Wife | Domestic | Wisconsin |
| 52 | Lottie Bell | 27 | Sister | Domestic | Wisconsin |
| 53 | August Lutz | 45 | Head | Carpenter | Germany |
| 54 | Hulda Lutz | 45 | Wife | — | Germany |
| 55 | Hugo Lutz | 22 | Son | Machinist | Germany |
| 56 | Elsa Lutz | 18 | Daughter | Glove Cutter | Germany |
| 57 | Frank Totzke | 28 | Head | Glove Cutter | Germany |
| 58 | Florence Totzke | 20 | Wife | — | Germany |
| 59 | Laddie Totzke | 0 | Daughter | — | Wisconsin |
| 60 | William Zuehlke | 26 | Head | Cabinetmaker | Germany |
| 61 | Johanna Zuehlke | 30 | Wife | — | Germany |
| 62 | William Zuehlke | 36 | Head | Jeweler | Wisconsin |
| 63 | Louisa Zuehlke | 34 | Wife | — | Wisconsin |
| 64 | Elsa Zuehlke | 13 | Daughter | At School | Wisconsin |
| 65 | William Zuehlke | 11 | Son | At School | Wisconsin |
| 66 | Frank Zuehlke | 9 | Son | At School | Wisconsin |
| 67 | Laura Zuehlke | 7 | Daughter | At School | Wisconsin |
| 68 | Emily Zuehlke | 5 | Daughter | At School | Wisconsin |
| 69 | Mable Zuehlke | 3 | Daughter | — | Wisconsin |
| 70 | Edna Zuehlke | 2 | Daughter | — | Wisconsin |
| 71 | August Koch | 40 | Head | Marble Cutter | Wisconsin |
| 72 | Wilhelmina Koch | 36 | Wife | — | Wisconsin |
| 73 | Alma Koch | 17 | Daughter | Milliner | Wisconsin |
| 74 | Hilda Koch | 13 | Daughter | At School | Wisconsin |
| 75 | Adila Koch | 10 | Daughter | At School | Wisconsin |
| 76 | Carl Koch | 9 | Son | At School | Wisconsin |
| 77 | William Koch THIS PERSON | 5 | Son | At School | Wisconsin |
| 78 | William Nolte | 44 | Boarder | Marble Cutter | Germany |
| 79 | William Zernia | 39 | Head | Currier | Germany |
| 80 | Anna Zernia | 30 | Wife | — | Wisconsin |
| 81 | Walter Zernia | 12 | Son | At School | Wisconsin |
| 82 | Hilda Zernia | 11 | Daughter | At School | Wisconsin |
| 83 | William Zernia | 10 | Son | At School | Illinois |
| 84 | Katherine Allarding | 26 | Boarder | Machine Operator | Wisconsin |
| 85 | Christoph Eple | 64 | Head | Saloonkeeper | Germany |
| 86 | Magdelena Eple | 61 | Wife | — | Germany |
| 87 | Robert Eple | 39 | Head | Cycle Maker | Wisconsin |
| 88 | Minna Eple | 39 | Wife | — | Wisconsin |
| 89 | Anna Eple | 16 | Daughter | Dressmaker | Wisconsin |
| 90 | William Eple | 13 | Son | At School | Wisconsin |
| 91 | Robert Eple | 9 | Son | At School | Wisconsin |
| 92 | William Schroeder | 24 | Head | Plasterer | Wisconsin |
| 93 | Bertha Schroeder | 23 | Wife | — | Germany |
| 94 | Harry Schroeder | 2 | Son | — | Wisconsin |
| 95 | Robert Sueder | 47 | Head | Molder | Wisconsin |
| 96 | Claudina Sueder | 38 | Wife | — | Wisconsin |
| 97 | Edward Sueder | 13 | Son | At School | Wisconsin |
| 98 | Herman Sueder | 12 | Son | At School | Wisconsin |
| 99 | Lillie Sueder | 11 | Daughter | At School | Wisconsin |
| 100 | Gilbert Sueder | 4 | Son | — | Wisconsin |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1900 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)