WR
William Reilly — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lake-County, Illinois
Our Model Tree links this William Reilly across the 1930 and 1940 US Censuses in Lake-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 7-person household.
Age 16
b. ~1924
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lake-County, Illinois |
| Surname | Reilly |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Waukegan City |
| 1935 Residence (County) | Lake |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Waukegan 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Raymond Reilly | Head | — | 50 | ~1890 |
| Thomas Reilly | Son | — | 19 | ~1921 |
| John Reilly | Son | — | 8 | ~1932 |
| William Reilly | Son | — | 16 | ~1924 |
| Barbara Reilly | Daughter | — | 13 | ~1927 |
| Frances Reilly | Spouse | — | 42 | ~1898 |
| Clara Hunder | Other | — | 42 | ~1898 |
Census Appearances
1930
Lake, Illinois
Son, age 6
Lake, Illinois · implied b. ~1924 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Reilly |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Lake-County, Illinois
Son, age 16
Lake-County, Illinois · implied b. ~1924 — 7 household members
| Surname | Reilly |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Waukegan City |
| 1935 Residence (County) | Lake |
| Income (1939) | 0 |
| 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 William Reilly across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Reilly
Son · 1940 · age 16 · b. ~1924 · Illinois
★ You are viewing this record
Sibling
Barbara Reilly
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Reilly
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Reilly
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 — Lake-County, Illinois
Open full size
1940 US Federal Census — Lake-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00831-00147)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Bernice Nordmeyer | 26 | Lodger | Stenographer | Illinois |
| 42 | Lester E. Swank | 38 | Head | Insurance Agent | Washington |
| 43 | Jessie M. Swank | 37 | Wife | Stenographer | Illinois |
| 44 | Ralph W. Swank | 16 | Son | — | Wisconsin |
| 45 | Henry G. Beckman | 71 | Head | — | Illinois |
| 46 | Helena Beckman | 67 | Wife | — | Illinois |
| 47 | Grace R. Bulkley | 63 | Head | — | Ohio |
| 48 | Frances Bolton | 33 | Lodger | Teacher | Illinois |
| 49 | Henry J. Lirack | 25 | Lodger | Analyst | Illinois |
| 50 | William Cheesman | 38 | Lodger | Chemical Engineer | Missouri |
| 51 | Mary E. Bastian | 31 | Head | Clerk-Typist | Illinois |
| 52 | Adelaide K. Bastian | 21 | Sister | Packer | Illinois |
| 53 | Robert H. Scott | 31 | Head | Asst. Sales Manager | Illinois |
| 54 | Gladys F. Scott | 31 | Wife | Stenographer | Kansas |
| 55 | Raymond T. Reilly | 50 | Head | Consultant Engineer | Illinois |
| 56 | Frances T. Reilly | 42 | Wife | — | Illinois |
| 57 | Thomas Reilly | 19 | Son | Chemist | Tennessee |
| 58 | William Reilly THIS PERSON | 16 | Son | — | Illinois |
| 59 | Barbara Reilly | 13 | Daughter | — | Illinois |
| 60 | John Reilly | 8 | Son | — | Illinois |
| 61 | Clara Hunder | 42 | Lodger | Teacher | Wisconsin |
| 62 | George C. Tuerk | 50 | Head | Chemist | Illinois |
| 63 | Gertrude M. Tuerk | 48 | Wife | — | Illinois |
| 64 | George Jr. Tuerk | 21 | Son | — | Illinois |
| 65 | William Tuerk | 19 | Son | File-Clerk | Illinois |
| 66 | Henry Tuerk | 15 | Son | — | Illinois |
| 67 | John Tuerk | 11 | Son | — | Illinois |
| 68 | Hans Christensen | 47 | Head | Painter | Denmark |
| 69 | Elly Christensen | 34 | Wife | — | Denmark |
| 70 | Anna Christensen | 13 | Daughter | — | Illinois |
| 71 | Raymond Christensen | 10 | Son | — | Illinois |
| 72 | Albert Svoboda | 35 | Head | Painter | Illinois |
| 73 | Mary Svoboda | 29 | Wife | — | Illinois |
| 74 | William Long | 59 | Head | — | Iowa |
| 75 | Emily Long | 54 | Wife | — | Illinois |
| 76 | Mary Paulson | 69 | Head | — | Illinois |
| 77 | Nora B. Long | 38 | Lodger | Stenographer | Wisconsin |
| 78 | Blanche Cook | 63 | Head | Teacher | Illinois |
| 79 | Lucile Cook | 61 | Sister | — | Illinois |
| 80 | Edith Tucker | 65 | Sister | — | 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)