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William Krause — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this William Krause across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 5-person household.
Age 16
b. ~1924
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Krause |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1924 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Mary Krause | Daughter | — | 14 | ~1926 |
| Bernhard Krause | Head | — | 43 | ~1897 |
| Gladys Krause | Spouse | — | 43 | ~1897 |
| William Krause | Son | — | 16 | ~1924 |
| Bernhard Krause | Son | — | 21 | ~1919 |
Census Appearances
1930
Cook, Illinois
Son, age 5
Cook, Illinois · implied b. ~1925 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Krouse |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 16
Cook-County, Illinois · implied b. ~1924 — 5 household members
| Surname | Krause |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Krause across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Krause
Son · 1940 · age 16 · b. ~1924 · Illinois
★ You are viewing this record
Sibling
Bernhard Krause
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Krause
Sibling · 1940 · age 14
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
1940 US Federal Census — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00990-00180)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William Campbell | 30 | Head | Chauffeur | Illinois |
| 2 | Lucille Campbell | 26 | Wife | — | Illinois |
| 3 | Edward Seefurth | 41 | Head | Housekeeper | Illinois |
| 4 | Florence Seefurth | 40 | Wife | — | Illinois |
| 5 | Mary Conners | 46 | Head | — | Illinois |
| 6 | John Conners | 26 | Son | Laborer | Illinois |
| 7 | William Conners | 23 | Son | Laborer | Illinois |
| 8 | Walter Conners | 18 | Son | New Worker | Illinois |
| 9 | Helen Conners | 17 | Daughter | — | Illinois |
| 10 | Oscar Courtney | 44 | Head | Shipping | Illinois |
| 11 | Minnie Courtney | 40 | Wife | — | Illinois |
| 12 | William Courtney | 12 | Son | — | Illinois |
| 13 | James Courtney | 8 | Son | — | Illinois |
| 14 | Henry Koch | 64 | Head | Music Teacher | Germany |
| 15 | Janine Koch | 59 | Wife | — | Germany |
| 16 | Earl Koch | 36 | Head | Superintendent | Illinois |
| 17 | Helen Koch | 32 | Wife | — | Illinois |
| 18 | Frank Kopaske | 48 | Head | Artist | New York |
| 19 | Frances Kopaske | 43 | Wife | — | Austria |
| 20 | Richard Kopaske | 16 | Son | — | Illinois |
| 21 | Albin Kopaske | 13 | Son | — | Illinois |
| 22 | Medard Kopaske | 11 | Son | — | Illinois |
| 23 | Bernhard Krause | 43 | Head | Chauffeur | Illinois |
| 24 | Gladys Krause | 43 | Wife | — | Illinois |
| 25 | Bernhard Krause | 21 | Son | Laborer | Illinois |
| 26 | William Krause THIS PERSON | 16 | Son | — | Illinois |
| 27 | Mary Krause | 14 | Daughter | — | Illinois |
| 28 | Elizabeth Brunhuber | 66 | Head | — | France |
| 29 | Edward Kadow | 34 | Son-in-law | Chauffeur | Illinois |
| 30 | Josephine Kadow | 32 | Daughter | — | Illinois |
| 31 | John Kadow | 7 | Son | — | Illinois |
| 32 | Robert Kadow | 3 | Son | — | Illinois |
| 33 | William Brunhuber | 31 | Son | Laborer | Illinois |
| 34 | Veronica Brunhuber | 24 | Daughter-in-law | — | Illinois |
| 35 | William Brunhuber | 4 | Grandson | — | Illinois |
| 36 | Bert Carlson | 54 | Head | Painter | Illinois |
| 37 | Anna Carlson | 52 | Wife | — | Illinois |
| 38 | Ernest Tinsley | 47 | Head | Proprietor | Illinois |
| 39 | Mathilda Tinsley | 44 | Wife | — | Illinois |
| 40 | Joseph Wierzewski | 45 | Head | Carpenter | Poland |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)