WG
William Gill — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this William Gill across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 6-person household.
Age 17
b. ~1923
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | GILL |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | H-3 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Virginia Gill | Daughter | — | 20 | ~1920 |
| Robert Gill | Son | — | 21 | ~1919 |
| Jeanette Gill | Daughter | — | 25 | ~1915 |
| E Gill | Head | — | 52 | ~1888 |
| Florence Gill | Spouse | — | 51 | ~1889 |
| William Gill | Son | — | 17 | ~1923 |
Census Appearances
1930
Cook, Illinois
Son, age 6
Cook, Illinois · implied b. ~1924 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gallo |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Italy |
| Mother's Birthplace | Italy |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 17
Cook-County, Illinois · implied b. ~1923 — 6 household members
| Surname | GILL |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | H-3 |
| 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 Gill across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Gill
Son · 1940 · age 17 · b. ~1923 · Illinois
★ You are viewing this record
Sibling
Robert Gill
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virginia Gill
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jeanette Gill
Sibling · 1940 · age 25
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-t0627-00932-00128)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Robt P. Bennett | 37 | Head | Music Engraver | Illinois |
| 2 | Jos. P. Bennett | 64 | Father | — | New Jersey |
| 3 | Florence Bennett | 64 | Mother | — | Illinois |
| 4 | L. J. Dyck | 43 | Head | Restaurant Mgr | Russia |
| 5 | Anna Dyck | 40 | Wife | — | Russia |
| 6 | Lionel Jr. Dyck | 19 | Son | Clerk | Illinois |
| 7 | Kathleen Dyck | 17 | Daughter | Salesgirl | Illinois |
| 8 | Norma Dyck | 11 | Daughter | — | Illinois |
| 9 | R. V. Palmer | 49 | Head | Record Clerk | Kansas |
| 10 | Eliz. Palmer | 40 | Wife | — | Ohio |
| 11 | Eliz L. Palmer | 16 | Daughter | — | Illinois |
| 12 | E. C. Gill | 52 | Head | Salesman | Illinois |
| 13 | Florence Gill | 51 | Wife | — | Illinois |
| 14 | Jeanette Gill | 25 | Daughter | Laboratory | Illinois |
| 15 | Robert Gill | 21 | Son | Yard Clerk | Illinois |
| 16 | Virginia Gill | 20 | Daughter | Stenographer | Illinois |
| 17 | William Gill THIS PERSON | 17 | Son | — | Illinois |
| 18 | Carl J. Blakeslee | 52 | Head | Supt-Sales | Illinois |
| 19 | Helen Blakeslee | 50 | Wife | — | Illinois |
| 20 | Art Mccluer | 53 | Head | Loco Eng | Illinois |
| 21 | Teresa Mccluer | 50 | Wife | — | Illinois |
| 22 | Mrs. H. Simon | 30 | Boarder | — | Kentucky |
| 23 | Fred Riether | 48 | Head | Chef | Germany |
| 24 | Alice Riether | 59 | Wife | — | Pennsylvania |
| 25 | Carl S. Paton | 39 | Step Son | Man. Editor | Pennsylvania |
| 26 | Henry Meixner | 68 | Head | — | Wisconsin |
| 27 | Eliz Meixner | 65 | Wife | — | England |
| 28 | Joseph Meixner | 30 | Son | Salesman | Illinois |
| 29 | Marcella Meixner | 27 | Daughter | Steno | Illinois |
| 30 | Mary C. Ritter | 30 | Lodger | Clerk | Kentucky |
| 31 | Ed Kratochwill | 69 | Head | 2Nd Miller | Ohio |
| 32 | Henrietta Kratochwill | 66 | Wife | — | England |
| 33 | Ethel Purcell | 45 | Step Daughter | — | Minnesota |
| 34 | Timothy Obrien | 48 | Head | Laborer | Ireland |
| 35 | Marie Obrien | 50 | Wife | Head Cook | England |
| 36 | Frank S. Davidson | 41 | Head | Sales Manager | Illinois |
| 37 | Rose Marie Davidson | 24 | Wife | — | Illinois |
| 38 | Sandra M. Davidson | 4 | Daughter | — | Illinois |
| 39 | David M. Davidson | 1 | Son | — | Illinois |
| 40 | Hugh G. Paterson | 75 | Head | — | Scotland |
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)