WK
William Koch — 1910 US Census Record
Linked across censuses1910 United States Federal Census · St Louis, Missouri
Our Model Tree links this William Koch across the 1900 and 1910 US Censuses in St Louis, Missouri (XGBoost, ~Confirmed) — first a head (b.~1865), then head of a 10-person household.
Age 45
b. ~1865
Male
Head
Born: Germany
Married
1910 Census Record Details
| Census Year | 1910 |
| Location | St Louis, Missouri |
| Surname | Koch |
| Given Name | William L |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Germany |
| Years Married | 24 |
| Year of Immigration | 1870 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Additional Details | |
| Occupation | Grocer |
| Industry | Home Grocery |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
| Occupation | Grocer |
| Township / Ward | St Louis City Part Of |
| Est. Birth Year | ~1865 |
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 1910 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Lizzie Koch | Daughter | — | 12 | ~1898 |
| Pearl Koch | Daughter | — | 10 | ~1900 |
| Minnie Koch | Spouse | — | 44 | ~1866 |
| Clara Koch | Daughter | — | 18 | ~1892 |
| Francis Koch | Son | — | 14 | ~1896 |
| Edward Koch | Son | — | 21 | ~1889 |
| William Koch | Son | — | 22 | ~1888 |
| William Koch | Head | — | 45 | ~1865 |
| Clarence Koch | Son | — | 15 | ~1895 |
| Theodore Koch | Son | — | 20 | ~1890 |
Census Appearances
1900
St Louis, …
Head, age 40
St Louis, Missouri · implied b. ~1860
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Koech |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Germany |
| Birth Month | Jun |
| Birth Year | 1860 |
| Year of Immigration | 1866 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Butcher |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
1910
St Louis, …
Head, age 45
St Louis, Missouri · implied b. ~1865 — 10 household members
| Surname | Koch |
| Given Name | William L |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Germany |
| Years Married | 24 |
| Year of Immigration | 1870 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Grocer |
| Industry | Home Grocery |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
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 St Louis, Missouri, using XGBoost record linkage.
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This person
Anchor record
William Koch
Head · 1910 · age 45 · b. ~1865 · Missouri
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1910 US Federal Census — St Louis, Missouri
Open full size
1910 US Federal Census — St Louis, Missouri
Page Contents
50 people indexed on this census page (ia:1910:13thcensus1910po822unit:0545)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ferdinand Petersen | 55 | Head | Draughtsman | Germany |
| 2 | Henry Petersen | 23 | Son | Laborer | Missouri |
| 3 | Marie E Petersen | 21 | Daughter | — | Missouri |
| 4 | Matilda L Petersen | 17 | Daughter | — | Missouri |
| 5 | William L Koch THIS PERSON | 45 | Head | Grocer | Germany |
| 6 | Minnie Koch | 44 | Wife | — | Switzerland |
| 7 | William Jr Koch | 22 | Son | Teamster | Missouri |
| 8 | Edward Koch | 21 | Son | Groomer | Missouri |
| 9 | Theodore Koch | 20 | Son | Brick Layer | Missouri |
| 10 | Clara Koch | 18 | Daughter | Telephone Operat. | Missouri |
| 11 | Clarence Koch | 15 | Son | Cabinet Maker | Missouri |
| 12 | Francis Koch | 14 | Son | — | Missouri |
| 13 | Lizzie Koch | 12 | Daughter | — | Missouri |
| 14 | Pearl Koch | 10 | Daughter | — | Missouri |
| 15 | Anna Schleveth | 76 | Head | Housekeeper | Germany |
| 16 | Mary Schleveth | 41 | Daughter | Seamstress | Germany |
| 17 | Clarence Schleveth | 7 | Grandson | — | Missouri |
| 18 | Cecilia Ellers | 8 | Granddaughter | — | Colorado |
| 19 | Emanuel Long | 65 | Head | Engineer | Austria |
| 20 | Rosie Long | 45 | Wife | — | Austria |
| 21 | Anna Long | 24 | Daughter | — | Missouri |
| 22 | Fred Long | 23 | Son | — | Missouri |
| 23 | Ella Long | 22 | Daughter | Clerk | Missouri |
| 24 | Francis Long | 21 | Daughter | Clerk | Missouri |
| 25 | Edward Long | 14 | Son | — | Missouri |
| 26 | Elizabeth Barlow | 60 | Head | Housekeeper | Ireland |
| 27 | Sylvester Barlow | 16 | Son | Clerk | Missouri |
| 28 | Elizabeth Barlow | 22 | Daughter | Phone Operator | Missouri |
| 29 | Jacob Berck | 34 | Head | — | Germany |
| 30 | Anna Berck | 31 | Wife | — | Germany |
| 31 | George Langlish | 40 | Head | Carpenter | England |
| 32 | Julia Langlish | 30 | Wife | — | Missouri |
| 33 | Ruth Langlish | 3 | Daughter | — | Missouri |
| 34 | Beatrice Langlish | 1 | Son | — | Missouri |
| 35 | Willie Pearce | 31 | Head | Laborer | Missouri |
| 36 | Effie Pearce | 31 | Wife | — | Missouri |
| 37 | Delmar Pearce | 3 | Son | — | Missouri |
| 38 | George Lorsch | 33 | Head | Fireman | Missouri |
| 39 | George Lorsch | 14 | Son | — | Missouri |
| 40 | Clara Lorsch | 12 | Daughter | — | Missouri |
| 41 | Elmer Lorsch | 9 | Son | — | Missouri |
| 42 | Clarence Lorsch | 8 | Son | — | Missouri |
| 43 | Mary Brown | 42 | Housekeeper | Housekeeper | Missouri |
| 44 | William Osterholtz | 33 | Head | Box Maker | Germany |
| 45 | Johanna Osterholtz | 21 | Wife | — | Germany |
| 46 | Henry Osterholtz | 2 | Son | — | Missouri |
| 47 | Otto Osterholtz | 26 | Head | Butcher | Missouri |
| 48 | Sophie Osterholtz | 17 | Wife | — | Missouri |
| 49 | Emma Osterholtz | 2 | Daughter | — | Missouri |
| 50 | Frederick Osterholtz | 3 | Son | — | Missouri |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1910 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)