WK
William Koch — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Kings, New York
Our Model Tree links this William Koch across the 1900, 1910 and 1920 US Censuses in Kings, New York (XGBoost, ~Confirmed) — first a head (b.~1860), then head of a 9-person household.
Age 60
b. ~1860
Male
Head
Born: Germany
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Kings, New York |
| Surname | Koch |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Germany |
| Year of Immigration | 1880 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Additional Details | |
| Occupation | Restaurant |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth Country | Germany |
| Year of Naturalization | 1885 |
| Birthplace (normalized) | germany |
| Occupation | Restaurant |
| Est. Birth Year | ~1860 |
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.
9 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Thomas Koch | Son | — | 4 | ~1916 |
| William Koch | Son | — | 30 | ~1890 |
| Sophie Koch | Spouse | — | 59 | ~1861 |
| Freda Koch | Daughter | — | 19 | ~1901 |
| Anna Koch | Daughter | — | 29 | ~1891 |
| Jacob Ott | Other | — | 76 | ~1844 |
| William Koch | Son | — | 7 | ~1913 |
| William Koch | Head | — | 60 | ~1860 |
| James Dillon | Other | — | 72 | ~1848 |
Census Appearances
1900
New York, …
Head, age 41
New York, New York · implied b. ~1859 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Koch |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Germany |
| Birth Month | May |
| Birth Year | 1859 |
| Year of Immigration | 1880 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Porter (Janitor) |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
1910
New York, …
Head, age 50
New York, New York · implied b. ~1860 — 14 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Koch |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Germany |
| Years Married | 22 |
| Year of Immigration | 1880 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Boarding House Keeper |
| Industry | Own |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
1920
Kings, New …
Head, age 60
Kings, New York · implied b. ~1860 — 9 household members
| Surname | Koch |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Germany |
| Year of Immigration | 1880 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Restaurant |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth Country | Germany |
| Year of Naturalization | 1885 |
| 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 3 US Census years (1900, 1910 and 1920) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Koch
Head · 1920 · age 60 · b. ~1860 · New York
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Kings, New York
Open full size
1920 US Federal Census — Kings, New York
Page Contents
49 people indexed on this census page (ia:1920:14thcensusofpopu1171unit:1068)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | John Cocroft | 42 | Son | Assistant Supt | New York |
| 52 | Hattie E Cocroft | 38 | Daughter | Clerk Title | New York |
| 53 | Starr H Cocroft | 34 | Daughter | — | Michigan |
| 54 | Margaret Buchanan | 47 | Sister | — | New York |
| 55 | Victor Meyer | 62 | Head | Printer | New York |
| 56 | Emma Meyer | 57 | Wife | — | New York |
| 57 | Josephine Meyer | 30 | Daughter | Bookkeeper | New York |
| 58 | Gladys Meyer | 28 | Daughter | Clerk | New York |
| 59 | William Meyer | 27 | Son | Clerk | New York |
| 60 | Nellie Meyer | 16 | Daughter | — | New York |
| 61 | William Koch THIS PERSON | 60 | Head | Restaurant | Germany |
| 62 | Sophie Koch | 59 | Wife | — | Germany |
| 63 | William Koch | 30 | Son | Auto Backing | New York |
| 64 | Anna Koch | 29 | Daughter | — | New York |
| 65 | Freda Koch | 19 | Daughter | Auto Helper | New York |
| 66 | William Koch | 7 | Son | — | New York |
| 67 | Thomas Koch | 4 | Son | — | New York |
| 68 | James Dillon | 72 | Boarder | — | New York |
| 69 | Jacob Ott | 76 | Boarder | Cabinet Maker | Switzerland |
| 70 | Harris Light | 21 | Head | Motorman | New York |
| 71 | Katherine Light | 20 | Wife | — | Ireland |
| 72 | William Saunders | 46 | Head | General Housecleaning | Virginia |
| 73 | Sarah Saunders | 35 | Wife | Laundress | Virginia |
| 74 | Henry Peter | 49 | Head | Messenger | Virginia |
| 75 | Bella Peter | 44 | Wife | — | New Jersey |
| 76 | Henry Jr Peter | 17 | Son | — | Virginia |
| 77 | Edward Smead | 25 | Head | — | New York |
| 78 | Nettie Smead | 22 | Wife | Domestic | Georgia |
| 79 | Rudolph Kirk | 47 | Head | Inspector | England |
| 80 | Emily Kirk | 47 | Wife | — | Ireland |
| 81 | William J Murray | 31 | Boarder | Folder In | New York |
| 82 | Theodore Back | 37 | Head | Color Cutter | New York |
| 83 | Anna Back | 30 | Wife | — | New York |
| 84 | Henry Helinger | 21 | Boarder | Chauffeur | New York |
| 85 | Wife Helinger | 20 | Wife | — | New York |
| 86 | Henry Harness | 38 | Head | Salesman | Russia |
| 87 | Susie Harness | 34 | Wife | — | England |
| 88 | Arthur Perry | 67 | Head | Cashier | New Hampshire |
| 89 | Anna M Perry | 73 | Wife | — | New York |
| 90 | Ann M Kelly | 54 | Head | — | Scotland |
| 91 | Florence Kelly | 26 | Daughter | Artist | New York |
| 92 | Burton Loder | 31 | Head | Chief Steward | England |
| 93 | Helen Loder | 24 | Wife | — | New York |
| 94 | Loris Loder | 1 | Daughter | — | New York |
| 95 | Elmer Kelly | 59 | Head | Secretary | New York |
| 96 | George H Wastl | 64 | Head | Salesman | Canada |
| 97 | Adeline F Wastl | 58 | Wife | — | New Jersey |
| 98 | Warren L Wastl | 22 | Son | Clerk | New York |
| 99 | Ethel L Wastl | 24 | Daughter | Dressmaker | New York |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)