WK
William Kruse — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this William Kruse across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1909), then head of a 4-person household.
Age 31
b. ~1909
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Kruse |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Draftsman |
| Industry | Coal Mining |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1370 |
| Highest Grade | H 1 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Draftsman |
| Township / Ward | Chicago |
| Est. Birth Year | ~1909 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Louis Kruse | Son | — | 7 | ~1933 |
| William Kruse | Head | — | 31 | ~1909 |
| Marion Kruse | Daughter | — | 3 | ~1937 |
| Ella Kruse | Spouse | — | 27 | ~1913 |
Census Appearances
1930
Cook, Illinois
Son, age 21
Cook, Illinois · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kruse |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Draftsman |
| Industry | Coal Mining Machine Manufacturing |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Head, age 31
Cook-County, Illinois · implied b. ~1909 — 4 household members
| Surname | Kruse |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Draftsman |
| Industry | Coal Mining |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1370 |
| Highest Grade | H 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 Kruse across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Kruse
Head · 1940 · age 31 · b. ~1909 · Illinois
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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-t0627-00954-00805)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edwin P. White | 36 | Head | Accountant | Illinois |
| 2 | Mary O. White | 35 | Wife | Typist | Illinois |
| 3 | Helen Gustafson | 29 | Head | Stenographer | Illinois |
| 4 | Morris Gustafson | 28 | Brother | Helper | Illinois |
| 5 | Carl D. Gustafson | 20 | Brother | Receiving Clerk | Illinois |
| 6 | Walter Klode | 45 | Head | Freight Driver | Illinois |
| 7 | Elmore Klode | 40 | Wife | — | Illinois |
| 8 | Violet Klode | 16 | Daughter | — | Illinois |
| 9 | Leroy Klode | 14 | Son | — | Illinois |
| 10 | Kenneth Winslow | 43 | Head | Salesman | Illinois |
| 11 | Marguerite Winslow | 42 | Wife | — | Indiana |
| 12 | William H. Herr | 52 | Head | Mechanic | Illinois |
| 13 | Minnie M. Herr | 51 | Wife | — | Illinois |
| 14 | Arthur Herr | 20 | Son | New Worker | Illinois |
| 15 | Bud Herr | 17 | Son | — | Illinois |
| 16 | Clarice Herr | 12 | Daughter | — | Illinois |
| 17 | William Kruse THIS PERSON | 31 | Head | Draftsman | Illinois |
| 18 | Ella Kruse | 27 | Wife | — | Illinois |
| 19 | Louis Kruse | 7 | Son | — | Illinois |
| 20 | Marion Kruse | 3 | Daughter | — | Illinois |
| 21 | Alvin B. W. Miller | 65 | Head | Stock Clerk | Germany |
| 22 | Augusta Miller | 62 | Wife | — | Germany |
| 23 | Birdie D. Pope | 45 | Head | Sales Clerk | Tennessee |
| 24 | Raymond Pope | 19 | Son | Order Filler | Indiana |
| 25 | Ralph Pope | 11 | Son | — | Illinois |
| 26 | Arthur D. Dosey | 44 | Head | Oiler | Illinois |
| 27 | Dolly Dosey | 42 | Wife | — | Illinois |
| 28 | Andrew J. Dosey | 12 | Son | — | Illinois |
| 29 | Genevieve Dosey | 10 | Daughter | — | Illinois |
| 30 | Richard Madsen | 24 | Nephew | Miner | Illinois |
| 31 | Charles H. Palak | 70 | Head | Foreman | Denmark |
| 32 | Amanda Palak | 68 | Wife | — | Sweden |
| 33 | Emil E. Spitzer | 38 | Head | Maintenance | Germany |
| 34 | Ella Spitzer | 27 | Wife | — | Germany |
| 35 | Robert John | 24 | Head | Machinist | Illinois |
| 36 | Elaine John | 24 | Wife | — | Illinois |
| 37 | Carol John | 1 | Daughter | — | Illinois |
| 38 | Bernard P. Hooker | 29 | Head | Mechanic | Illinois |
| 39 | Eleanore Hooker | 32 | Wife | — | Illinois |
| 40 | Louise Hooker | 2 | Daughter | — | Illinois |
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)