KW
Katherine Williams — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Dupage-County, Illinois
Our Model Tree links this Katherine Williams across the 1930 and 1940 US Censuses in Dupage-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 7-person household.
Age 17
b. ~1923
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Dupage-County, Illinois |
| Surname | Williams |
| Given Name | Katherine |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Milton Township |
| 1935 Residence (County) | DuPage |
| Additional Details | |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Milton Township |
| Est. Birth Year | ~1923 |
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 |
|---|---|---|---|---|
| Hanna Williams | Spouse | — | 45 | ~1895 |
| Caroline Williams | Daughter | — | 8 | ~1932 |
| Katherine Williams | Daughter | — | 17 | ~1923 |
| Mary Williams | Daughter | — | 15 | ~1925 |
| Richard Williams | Son | — | 13 | ~1927 |
| Jackson Williams | Head | — | 50 | ~1890 |
| Doris Williams | Daughter | — | 18 | ~1922 |
Census Appearances
1930
Dupage, Illinois
Daughter, age 7
Dupage, Illinois · implied b. ~1923 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Katherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ireland |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Dupage-County, Illinois
Daughter, age 17
Dupage-County, Illinois · implied b. ~1923 — 7 household members
| Surname | Williams |
| Given Name | Katherine |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Milton Township |
| 1935 Residence (County) | DuPage |
| Highest Grade | H-2 |
| 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 17 · b. ~1923 · Illinois
★ You are viewing this record
Sibling
Mary Williams
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Williams
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Doris Williams
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Caroline Williams
Sibling · 1940 · age 8
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 — Dupage-County, Illinois
Open full size
1940 US Federal Census — Dupage-County, Illinois
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-00798-00664)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward W Mccluney | 14 | son | — | Illinois |
| 2 | Naoma J Mccluney | 12 | daughter | — | Illinois |
| 3 | Joan A Mccluney | 7 | daughter | — | Illinois |
| 4 | Jackson Williams | 50 | head | Plasterer | Ohio |
| 5 | Hanna Williams | 45 | wife | — | Ireland |
| 6 | Doris Williams | 18 | daughter | — | Minnesota |
| 7 | Katherine Williams THIS PERSON | 17 | daughter | — | Illinois |
| 8 | Mary Ellen Williams | 15 | daughter | — | Illinois |
| 9 | Richard Williams | 13 | son | — | Illinois |
| 10 | Caroline Williams | 8 | daughter | — | Illinois |
| 12 | Earl Weimer | 45 | head | Carpenter | Pennsylvania |
| 13 | Caroline Weimer | 42 | wife | — | Illinois |
| 14 | Lorraine Weimer | 21 | daughter | Servant | Illinois |
| 15 | Martin Weimer | 19 | son | Laborer | Illinois |
| 16 | Ralph Weimer | 9 | son | — | Illinois |
| 17 | Carolyn Weimer | 7 | daughter | — | Illinois |
| 18 | Verne Slayton | 37 | head | Fireman | Wisconsin |
| 19 | Frieda Slayton | 38 | wife | — | Iowa |
| 20 | Betty Jane Slayton | 10 | daughter | — | Illinois |
| 21 | Alice Slayton | 8 | daughter | — | Wisconsin |
| 22 | Joan Slayton | 5 | daughter | — | Wisconsin |
| 23 | Beatrice Slayton | 12 | daughter | — | Illinois |
| 24 | John Johnson | 54 | head | Automobile Mechanic | Sweden |
| 25 | Pauline Johnson | 44 | wife | — | Norway |
| 26 | Rudolph Marvan | 47 | head | Automobile Mechanic | Illinois |
| 27 | Estelle Marvan | 34 | wife | — | Illinois |
| 28 | Frank Liska | 47 | lodger | Machine Oiler | Czechoslovakia |
| 29 | Arthur Franzen | 29 | head | Bookkeeper | Illinois |
| 30 | Nellie Franzen | 28 | wife | — | Illinois |
| 31 | Roger Franzen | 5 | son | — | Illinois |
| 32 | Beverly Franzen | 2 | daughter | — | Illinois |
| 33 | Woldemar Vollmer | 51 | head | Laborer | Russia |
| 34 | Annie Vollmer | 52 | wife | — | Russia |
| 35 | Christen Hess | 70 | head | — | Norway |
| 36 | Minnie Hess | 74 | wife | — | Norway |
| 38 | William Black | 43 | head | Laborer | Illinois |
| 39 | Dora Black | 42 | wife | — | Illinois |
| 40 | Gladys Black | 20 | daughter | Servant | 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)