WS
William Schroeder — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this William Schroeder across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents William & Lena — first a son (b.~1919), then head of a 4-person household.
Age 21
b. ~1919
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Schroeder |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Laborer |
| Industry | Paper House |
| Class of Worker | PW |
| Hours Worked | 52 |
| Income (1939) | 300 |
| Highest Grade | 7 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Laborer |
| Township / Ward | Worth Townp |
| Est. Birth Year | ~1919 |
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 |
|---|---|---|---|---|
| William Schroeder | Head | — | 63 | ~1877 |
| William Schroeder | Son | — | 21 | ~1919 |
| David Schroeder | Son | — | 22 | ~1918 |
| Lena Schroeder | Spouse | — | 60 | ~1880 |
Census Appearances
1920
Cook, Illinois
Son, age 1
Cook, Illinois · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schroeder |
| Given Name | William |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Naturalization Status | Naturalized |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 11
Cook, Illinois · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schroeder |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 21
Cook-County, Illinois · implied b. ~1919 — 4 household members
| Surname | Schroeder |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Laborer |
| Industry | Paper House |
| Class of Worker | PW |
| Hours Worked | 52 |
| Income (1939) | 300 |
| Highest Grade | 7 |
| 1935 Residence | Illinois |
| 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 Schroeder across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Schroeder (~0.92 confidence) and mother Lena Schroeder (~0.92 confidence) and mother Ida Schroeder (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Schroeder
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Lena Schroeder
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Ida Schroeder
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Schroeder
Son · 1940 · age 21 · b. ~1919 · Illinois
★ You are viewing this record
Sibling
David Schroeder
Sibling · 1940 · age 22
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-t0627-00790-00253)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Herbert Lindemann | 29 | Head | Cleaner | Illinois |
| 2 | Elsie Lindemann | 29 | Wife | Waitress | Illinois |
| 3 | Lloyd Spencer | 41 | Head | Laborer | Illinois |
| 4 | Thelma Spencer | 36 | Wife | — | No. Carolina |
| 5 | Sara Spencer | 12 | Daughter | — | Illinois |
| 6 | Clarence Wibord | 45 | Head | Stationary Fireman | Nebraska |
| 7 | Rae Wibord | 45 | Wife | — | Nebraska |
| 8 | Clarence Wibord | 19 | Son | Mud Washer | Nebraska |
| 9 | Emma Wibord | 13 | Daughter | — | Nebraska |
| 10 | Arthur Hodge | 55 | Head | Cement Block Maker | Wisconsin |
| 11 | Emma Hodge | 61 | Wife | — | Minnesota |
| 12 | Lloyd Hodge | 39 | Son | Inspector | Iowa |
| 13 | Burnette Hodge | 25 | Son | Truck Helper | Wisconsin |
| 14 | Robert A. Hodge | 19 | Son | Laborer | Wisconsin |
| 15 | Neva Hodge | 16 | Daughter | — | Wisconsin |
| 16 | Charles Alvis | 35 | Head | Gas Day Man | Illinois |
| 17 | Sylvia Alvis | 34 | Wife | — | Illinois |
| 18 | Shirley Mae Alvis | 11 | Daughter | — | Illinois |
| 19 | Charles Alvis | 2 | Son | — | Illinois |
| 20 | Henry Knapp | 39 | Head | Electrician | Illinois |
| 21 | Grace Knapp | 40 | Wife | — | Illinois |
| 22 | Mary Ann Knapp | 13 | Daughter | — | Illinois |
| 23 | William Schroeder | 63 | Head | — | Illinois |
| 24 | Lena Schroeder | 60 | Wife | — | Missouri |
| 25 | David Schroeder | 22 | Son | Laborer | Wisconsin |
| 26 | William Schroeder THIS PERSON | 21 | Son | Laborer | Illinois |
| 27 | Joseph Hinda | 50 | Head | Laborer | Austria |
| 28 | Katherine Hinda | 43 | Wife | — | Austria |
| 29 | Joseph Hinda | 23 | Son | Laborer | Illinois |
| 30 | John Rudolph | 42 | Head | Truck Driver | Illinois |
| 31 | Ida Rudolph | 42 | Wife | — | Illinois |
| 32 | Lois Rudolph | 6 | Daughter | — | Illinois |
| 33 | Anna Kepler | 51 | Head | — | Illinois |
| 34 | Louise Kepler | 30 | Daughter | Cook | Illinois |
| 35 | Kennedy Kepler | 28 | Son | Secretary | Illinois |
| 36 | Robert Kepler | 24 | Son | Salesman | Illinois |
| 37 | Clarence Schedin | 35 | Head | Foreman | Minnesota |
| 38 | Bernice Schedin | 29 | Wife | — | Illinois |
| 39 | Arnold Schedin | 9 | Son | — | Illinois |
| 40 | Gordon Schedin | 6 | Son | — | Illinois |
Pedigree Summary
William + 1 sibling
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)