MW
Marjorie Williams — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Marjorie Williams across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 6-person household.
Age 16
b. ~1924
Female
Daughter
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Williams |
| Given Name | Marjorie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Chicago city |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Industry | 0 |
| Highest Grade | H-3 |
| 1935 Residence | Same house |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1924 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Marjorie | Age | Birth yr |
|---|---|---|---|---|
| Marjorie Williams | Daughter | — | 16 | ~1924 |
| Katharine Williams | Daughter | — | 24 | ~1916 |
| Parthena Williams | Spouse | — | 46 | ~1894 |
| Virginia Williams | Daughter | — | 12 | ~1928 |
| Ralph Williams | Head | — | 48 | ~1892 |
| Dorothy Williams | Daughter | — | 18 | ~1922 |
Census Appearances
1930
Cook, Illinois
Daughter, age 6
Cook, Illinois · implied b. ~1924 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Marjorie F. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Cook-County, Illinois
Daughter, age 16
Cook-County, Illinois · implied b. ~1924 — 6 household members
| Surname | Williams |
| Given Name | Marjorie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Chicago city |
| 1935 Residence (County) | Cook |
| Industry | 0 |
| Highest Grade | H-3 |
| 1935 Residence | Same house |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 Marjorie Williams across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Marjorie Williams
Daughter · 1940 · age 16 · b. ~1924 · Illinois
★ You are viewing this record
Sibling
Dorothy Williams
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Katharine Williams
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virginia Williams
Sibling · 1940 · age 12
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-t0627-01000-00228)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Marie Ayres | 47 | Mother-in-law | Cashier | Illinois |
| 2 | Ralph T. Williams | 48 | Head | Material Inspector | Missouri |
| 3 | Parthena Williams | 46 | Wife | — | Missouri |
| 4 | Katharine Williams | 24 | Daughter | Photo Retouching | Missouri |
| 5 | Dorothy Williams | 18 | Daughter | Order-Reader | Illinois |
| 6 | Marjorie Williams THIS PERSON | 16 | Daughter | — | Missouri |
| 7 | Virginia Williams | 12 | Daughter | — | Illinois |
| 8 | Don N. Flynn | 68 | Head | — | Illinois |
| 9 | Robert W. Flynn | 42 | Son | Assistant Surgeon | Illinois |
| 10 | Theresa Flynn | 39 | Daughter-in-law | — | Wisconsin |
| 11 | Charles Thomas | 43 | Head | Police Officer | Illinois |
| 12 | Hazel Thomas | 39 | Wife | Clerk | Illinois |
| 13 | Charles Mateu | 64 | Head | Accountant | Illinois |
| 14 | Nellie B. Mateu | 52 | Wife | — | Illinois |
| 15 | Mary E. Mateu | 25 | Daughter | Secretary | Wisconsin |
| 16 | Nicholas Bicking | 30 | Head | Salesman | Hungary |
| 17 | Mary Bicking | 30 | Wife | Teacher | Scotland |
| 18 | Harry C. Holter | 34 | Head | Accountant | Illinois |
| 19 | Marlowe Holter | 27 | Wife | Operator | Minnesota |
| 20 | Edwin P. Swatela | 55 | Head | Dentist | Illinois |
| 21 | Clara J. Swatela | 52 | Wife | — | Illinois |
| 22 | Jane Swatela | 26 | Daughter | Typist | Illinois |
| 23 | Paul A. Swatela | 24 | Son | — | Illinois |
| 24 | Arthur Uhlir | 44 | Head | Teacher | Illinois |
| 25 | Helene Uhlir | 42 | Wife | Teacher | Illinois |
| 26 | Arthur Jr. Uhlir | 14 | Son | — | Illinois |
| 27 | Bessie Johnson | 68 | Housekeeper | Housekeeper | Michigan |
| 28 | Josephine Gage | 47 | Head | Medical Clerk | Kansas |
| 29 | Elliot H. Gage | 17 | Son | — | Tennessee |
| 30 | Josephine J. Gage | 15 | Daughter | — | Georgia |
| 31 | Rodney Kile | 28 | Head | Stationary Engineer | Iowa |
| 32 | Erma Kile | 27 | Wife | — | Illinois |
| 33 | Franklin Kile | 7 | Son | — | Illinois |
| 34 | Claudette Kile | 4 | Daughter | — | Illinois |
| 35 | Gerallyn Kile | 0 | Daughter | — | Illinois |
| 36 | Clory Kroom | 39 | Head | Truck Driver | Illinois |
| 37 | Julia Kroom | 36 | Wife | — | Illinois |
| 38 | Florence Kroom | 17 | Daughter | — | Illinois |
| 39 | Marjorie Kroom | 16 | Daughter | — | Illinois |
| 40 | Ben Lundbeck | 48 | Head | Stationary Engineer | Minnesota |
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)