WM
William Maloney — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this William Maloney across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 7-person household.
Age 12
b. ~1928
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Maloney |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Highest Grade | 6 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Wilmette Village |
| 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 William | Age | Birth yr |
|---|---|---|---|---|
| Mary Maloney | Spouse | — | 37 | ~1903 |
| Wm Maloney | Head | — | 38 | ~1902 |
| David Maloney | Son | — | 5 | ~1935 |
| Elisabeth Maloney | Daughter | — | 3 | ~1937 |
| John Maloney | Son | — | 6 | ~1934 |
| Loretta Maloney | Daughter | — | 10 | ~1930 |
| William Maloney | Son | — | 12 | ~1928 |
Census Appearances
1930
Cook, Illinois
Son, age 1
Cook, Illinois · implied b. ~1929 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Molony |
| Given Name | William G. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 12
Cook-County, Illinois · implied b. ~1928 — 7 household members
| Surname | Maloney |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Highest Grade | 6 |
| 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 Maloney across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Maloney
Son · 1940 · age 12 · b. ~1928 · Illinois
★ You are viewing this record
Sibling
David Maloney
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Loretta Maloney
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elisabeth Maloney
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Maloney
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-t0627-00782-00962)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Robert S. Stephens | 29 | Head | Sales Engineer | Illinois |
| 2 | Joy Stephens | 25 | Wife | — | Illinois |
| 3 | Kay Stephens | 4 | Daughter | — | Illinois |
| 4 | Peter Stephens | 3 | Son | — | Illinois |
| 5 | Wm. L. Maloney | 38 | Head | Attorney | Illinois |
| 6 | Mary L. Maloney | 37 | Wife | — | Illinois |
| 7 | William Maloney THIS PERSON | 12 | Son | — | Illinois |
| 8 | Loretta Maloney | 10 | Daughter | — | Illinois |
| 9 | John Maloney | 6 | Son | — | Illinois |
| 10 | David Maloney | 5 | Son | — | Illinois |
| 11 | Elisabeth Maloney | 3 | Daughter | — | Illinois |
| 12 | Henry Specht | 54 | Head | Plumbing | Illinois |
| 13 | Gertrude Specht | 54 | Wife | — | Illinois |
| 14 | Robert Specht | 24 | Son | Salesman-Clerk | Illinois |
| 15 | Donald Specht | 20 | Son | Clerk | Illinois |
| 16 | Carol Specht | 19 | Daughter | Clerk-General | Illinois |
| 17 | August Specht | 16 | Son | — | Illinois |
| 18 | Marjorie Specht | 15 | Daughter | — | Illinois |
| 19 | Charles Specht | 13 | Son | — | Illinois |
| 20 | James Specht | 9 | Son | — | Illinois |
| 21 | Arnold Linn | 38 | Head | Statistician | Illinois |
| 22 | Loretta Linn | 37 | Wife | — | Illinois |
| 23 | Donna Lynne Linn | 8 | Daughter | — | Illinois |
| 24 | Harry G. Enault | 50 | Head | Police Captain | Illinois |
| 25 | Emily G. Enault | 43 | Wife | — | Illinois |
| 26 | Clifford Enault | 21 | Son | Manager-Asst. | Illinois |
| 27 | Fred J. Genster | 36 | Head | Dentist | Illinois |
| 28 | Jessie G. Genster | 36 | Wife | — | Iowa |
| 29 | Fred Jr. Genster | 7 | Son | — | Illinois |
| 30 | Robert Genster | 1 | Son | — | Illinois |
| 31 | Raymond Bartell | 33 | Lodger | Mechanic | Illinois |
| 32 | Ray B. Steiner | 38 | Head | Master Plumber | Illinois |
| 33 | Edna Steiner | 40 | Wife | — | Illinois |
| 34 | Phyllis Steiner | 14 | Daughter | — | Illinois |
| 35 | Charles A. Meier | 55 | Head | Carpenter | Illinois |
| 36 | Rose Meier | 53 | Wife | — | Illinois |
| 37 | Philip J. Sesterhenn | 45 | Head | Bookkeeper | Illinois |
| 38 | Mary Sesterhenn | 44 | Wife | — | Illinois |
| 39 | Martha Sesterhenn | 18 | Daughter | — | Illinois |
| 40 | Loretta Sesterhenn | 12 | Daughter | — | 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)