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William Washington — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this William Washington across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 12-person household.
Age 14
b. ~1926
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Washington |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Robbins Village |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Robbins Village |
| Est. Birth Year | ~1926 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Washington | Son | — | 14 | ~1926 |
| Leonard Washington | Son | — | 6 | ~1934 |
| Delores Washington | Daughter | — | 1 | ~1939 |
| Robert Washington | Head | — | 40 | ~1900 |
| Milton Washington | Son | — | 16 | ~1924 |
| Lee Washington | Son | — | 11 | ~1929 |
| Robert Washington | Son | — | 19 | ~1921 |
| Donald Washington | Son | — | 9 | ~1931 |
| Evelyn Washington | Spouse | — | 36 | ~1904 |
| Charles Clark | Other | — | 67 | ~1873 |
| Lovella Washington | Son | — | 18 | ~1922 |
| Bernice Washington | Daughter | — | 4 | ~1936 |
Census Appearances
1930
Cook, Illinois
Son, age 3
Cook, Illinois · implied b. ~1927 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Washington |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 14
Cook-County, Illinois · implied b. ~1926 — 12 household members
| Surname | Washington |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Robbins Village |
| 1935 Residence (County) | Cook |
| Class of Worker | 0 |
| Highest Grade | 7 |
| 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 Washington across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Washington
Son · 1940 · age 14 · b. ~1926 · Illinois
★ You are viewing this record
Sibling
Bernice Washington
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lee Washington
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Milton Washington
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Washington
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Washington
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Delores Washington
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lovella Washington
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leonard Washington
Sibling · 1940 · age 6
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-t0627-00775-00544)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Hannah Brandon | 56 | Head | Housekeeper | Georgia |
| 2 | Ulysses James | 45 | Head | Trader | Georgia |
| 3 | Adeline James | 45 | Wife | — | Georgia |
| 4 | Ulysses Jr James | 24 | Son | Porter | Georgia |
| 5 | Gilbert James | 19 | Son | Messenger | Illinois |
| 6 | Israel Jr Pugh | 21 | Lodger | New Worker | Louisiana |
| 7 | Catherine James | 20 | Daughter | — | Illinois |
| 8 | Infant Constance James | 0 | Daughter | — | Illinois |
| 9 | William Mcdaniel | 42 | Head | Proprietor | Mississippi |
| 10 | Addie Mcdaniel | 49 | Wife | Saleslady | Mississippi |
| 11 | Randolph Mcdaniel | 17 | Son | Planter | Mississippi |
| 12 | Myrtle Williamson | 22 | Daughter | — | Mississippi |
| 13 | Eddie B Williamson | 8 | Grandson | — | Illinois |
| 14 | Eddie B Williamson | 7 | Grandson | — | Illinois |
| 15 | Eddie Jr Williamson | 5 | Grandson | — | Illinois |
| 16 | Romani Williamson | 4 | Grandson | — | Illinois |
| 17 | Morris Williamson | 2 | Grandson | — | Illinois |
| 18 | Willie D Jackson | 21 | Daughter | Housekeeping | Illinois |
| 19 | Carroll Jackson | 2 | Grandson | — | Illinois |
| 20 | William King | 58 | Head | — | Georgia |
| 21 | John Darks | 14 | Son | — | Illinois |
| 22 | Jessie Smith | 30 | Head | — | Georgia |
| 23 | Robert Washington | 40 | Head | Shoveler | Ohio |
| 24 | Evelyn Washington | 36 | Wife | Helper | Illinois |
| 25 | Robert A Washington | 19 | Son | — | Illinois |
| 26 | Lovella Washington | 18 | Son | New Worker | Illinois |
| 27 | Milton Washington | 16 | Son | — | Illinois |
| 28 | William Washington THIS PERSON | 14 | Son | — | Illinois |
| 29 | Lee Warner Washington | 11 | Son | — | Illinois |
| 30 | Donald Washington | 9 | Son | — | Illinois |
| 31 | Leonard Washington | 6 | Son | — | Illinois |
| 32 | Bernice Washington | 4 | Daughter | — | Illinois |
| 33 | Delores Washington | 1 | Daughter | — | Illinois |
| 34 | Charles Clark | 67 | Lodger | — | Massachusetts |
| 35 | Israel Billingsley | 48 | Head | Painter | Georgia |
| 36 | Louise Billingsley | 46 | Wife | — | Georgia |
| 37 | Mackie Lou Billingsley | 10 | Daughter | — | Illinois |
| 38 | Walter Fields | 49 | Head | Tunneler | Alabama |
| 39 | Carrie Fields | 47 | Wife | — | Tennessee |
| 40 | Willie Lovelle | 73 | Mother-in-law | — | Tennessee |
Related Census Records
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)