KW
Katherine Williams — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Katherine Williams across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 7-person household.
Age 12
b. ~1928
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Williams |
| Given Name | Katherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1928 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Katherine | Age | Birth yr |
|---|---|---|---|---|
| Warner Williams | Son | — | 15 | ~1925 |
| Irene Williams | Daughter | — | 13 | ~1927 |
| Katherine Williams | Daughter | — | 12 | ~1928 |
| Evelyn Williams | Daughter | — | 16 | ~1924 |
| Hozzie Williams | Head | — | 47 | ~1893 |
| Shirley Williams | Daughter | — | 9 | ~1931 |
| Fannie Williams | Spouse | — | 46 | ~1894 |
Census Appearances
1930
Cook, Illinois
Daughter, age 1
Cook, Illinois · implied b. ~1929 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Katie |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Arkansas |
| Occupation | none |
| Can Read/Write | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Daughter, age 12
Cook-County, Illinois · implied b. ~1928 — 7 household members
| Surname | Williams |
| Given Name | Katherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Highest Grade | No 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 Katherine Williams across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Katherine Williams
Daughter · 1940 · age 12 · b. ~1928 · Illinois
★ You are viewing this record
Sibling
Warner Williams
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Shirley Williams
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irene Williams
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Evelyn Williams
Sibling · 1940 · age 16
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-t0627-00977-00843)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William Washburn | 63 | Head | Janitor | Illinois |
| 2 | Harriet Washburn | 56 | Wife | — | Illinois |
| 3 | Anna Graham | 57 | Sister | — | Illinois |
| 4 | Mattie Herold | 48 | Head | — | Georgia |
| 5 | James B Herold | 24 | Son | — | Mississippi |
| 6 | Emma Jordan | 47 | Lodger | Homework | Alabama |
| 7 | Leonard Taylor | 36 | Lodger | Laborer | Georgia |
| 8 | Jimmie Mitchell | 35 | Lodger | Laborer | Georgia |
| 9 | Hozzie Williams | 47 | Head | Rug Cleaner | Louisiana |
| 10 | Fannie Williams | 46 | Wife | — | Tennessee |
| 11 | Evelyn Williams | 16 | Daughter | — | Illinois |
| 12 | Warner Williams | 15 | Son | — | Illinois |
| 13 | Irene Lee Williams | 13 | Daughter | — | Illinois |
| 14 | Katherine Williams THIS PERSON | 12 | Daughter | — | Illinois |
| 15 | Shirley Williams | 9 | Daughter | — | Illinois |
| 16 | Emma Sharpe | 36 | Head | — | Kentucky |
| 17 | Cundy Price | 62 | Father | — | Kentucky |
| 18 | Simpson Jones | 63 | Head | — | Georgia |
| 19 | Alice Jones | 38 | Wife | — | Georgia |
| 20 | Richard Lockett | 32 | Son-in-law | Laborer | Georgia |
| 21 | Alice Lockett | 11 | Daughter | — | Illinois |
| 22 | Frank Judas | 41 | Lodger | Laborer | Georgia |
| 23 | Albertale Hillie | 43 | Head | — | Alabama |
| 24 | Jellie Marlone | 18 | Niece | — | Alabama |
| 25 | Willie Hundley | 39 | Head | Auto Mechanic | Mississippi |
| 26 | Helen Hundley | 31 | Wife | — | Mississippi |
| 27 | William Hundley | 4 | Son | — | Illinois |
| 28 | Marie Hundley | 2 | Daughter | — | Illinois |
| 29 | James Hundley | 0 | Son | — | Illinois |
| 30 | John D Cook | 52 | Head | Pullman Porter | Arkansas |
| 31 | Annabella Cook | 27 | Wife | — | Tennessee |
| 32 | John Chains | 10 | Step-son | — | Tennessee |
| 33 | James Chains | 9 | Step-son | — | Illinois |
| 34 | Jones Chains | 7 | Step-son | — | Illinois |
| 35 | George W B Malcolm | 26 | Head | Owner | Scotland |
| 36 | Isabella Malcolm | 68 | Wife | — | Scotland |
| 37 | Theodis Barth | 26 | Head | Night Watchman | Alabama |
| 38 | Esther Barth | 25 | Wife | — | Alabama |
| 39 | Waneda Barth | 7 | Daughter | — | Alabama |
| 40 | Theodis Barth | 0 | Son | — | 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)