WC
William Connell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this William Connell across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1894), then head of a 9-person household.
Age 46
b. ~1894
Male
Head
Born: ILLINOIS
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | CONNELL |
| Given Name | WILLIAM |
| Relationship to Head | HEAD |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | ILLINOIS |
| 1935 Residence (City) | CHICAGO CITY |
| 1935 Residence (County) | COOK |
| Additional Details | |
| Occupation | ENGINEER |
| Industry | CITY OF CHICAGO |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 3600 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Engineer |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1894 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Catherine Connell | Daughter | — | 17 | ~1923 |
| William Connell | Head | — | 46 | ~1894 |
| Jennie Connell | Spouse | — | 41 | ~1899 |
| William Connell | Son | — | 5 | ~1935 |
| Marie Connell | Daughter | — | 18 | ~1922 |
| John Connell | Son | — | 5 | ~1935 |
| Adrienne Connell | Daughter | — | 12 | ~1928 |
| Cecile Connell | Daughter | — | 13 | ~1927 |
| Walter Connell | Son | — | 2 | ~1938 |
Census Appearances
1930
Cook, Illinois
Head, age 36
Cook, Illinois · implied b. ~1894 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Connell |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 26 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Illinois |
| Occupation | Engineer |
| Industry | City |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 8500 |
| Radio Set | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Head, age 46
Cook-County, Illinois · implied b. ~1894 — 9 household members
| Surname | CONNELL |
| Given Name | WILLIAM |
| Relationship to Head | HEAD |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | ILLINOIS |
| 1935 Residence (City) | CHICAGO CITY |
| 1935 Residence (County) | COOK |
| Occupation | ENGINEER |
| Industry | CITY OF CHICAGO |
| Class of Worker | GW |
| Hours Worked | 48 |
| Income (1939) | 3600 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| 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 Connell across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Connell
Head · 1940 · age 46 · b. ~1894 · Illinois
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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
39 people indexed on this census page (nara:1940:m-t0627-00938-00722)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Dorothy Gunnerson | 15 | DAUGHTER | — | ILLINOIS |
| 2 | Arthur Gunnerson | 12 | SON | — | ILLINOIS |
| 3 | Felix Lienau | 54 | HEAD | Switchman | GERMANY |
| 4 | Bertha Lienau | 45 | WIFE | — | ILLINOIS |
| 5 | Rowland Long | 39 | HEAD | Operator | OHIO |
| 6 | Mildred Long | 34 | WIFE | Dictaphone Operator | ILLINOIS |
| 7 | Fred Mertens | 46 | HEAD | Salesman | ILLINOIS |
| 8 | Terese Mertens | 46 | WIFE | — | ILLINOIS |
| 9 | George Bosley | 39 | HEAD | Printer | ILLINOIS |
| 10 | Anna Bosley | 41 | WIFE | — | MINNESOTA |
| 11 | Arvid Pearson | 60 | HEAD | Carpenter | SWEDEN |
| 12 | Ada Pearson | 51 | WIFE | — | SWEDEN |
| 13 | Walter Gaedke | 35 | SON IN LAW | Printer | ILLINOIS |
| 14 | Ellen Gaedke | 30 | DAUGHTER | Clerk | ILLINOIS |
| 15 | Frank Hatch | 38 | HEAD | Lawyer | ILLINOIS |
| 16 | Harriet Hatch | 40 | WIFE | — | WISCONSIN |
| 17 | Sarah Hatch | 11 | DAUGHTER | — | ILLINOIS |
| 18 | Lois Joan Hatch | 8 | DAUGHTER | — | ILLINOIS |
| 19 | Johanna Hatch | 70 | MOTHER | — | GERMANY |
| 20 | James Burke | 54 | HEAD | Salesman | IRELAND |
| 21 | Helen Burke | 48 | WIFE | — | SWEDEN |
| 22 | Edmund Burke | 17 | SON | — | ILLINOIS |
| 23 | Carl Anderson | 58 | HEAD | Machinist | SWEDEN |
| 24 | Elna Anderson | 57 | WIFE | — | SWEDEN |
| 25 | Betty Jane Anderson | 17 | DAUGHTER | — | ILLINOIS |
| 26 | Maurice Jewell | 38 | HEAD | Feeder | ILLINOIS |
| 27 | Mildred Jewell | 37 | WIFE | Cashier | ILLINOIS |
| 28 | Maureen Jewell | 13 | DAUGHTER | — | ILLINOIS |
| 29 | Ella Pellis | 71 | MOTHER | — | ILLINOIS |
| 30 | William Connell THIS PERSON | 46 | HEAD | Engineer | ILLINOIS |
| 31 | Jennie Connell | 41 | WIFE | — | ILLINOIS |
| 32 | Marie Connell | 18 | DAUGHTER | — | ILLINOIS |
| 33 | Catherine Connell | 17 | DAUGHTER | — | ILLINOIS |
| 34 | Cecile Connell | 13 | DAUGHTER | — | ILLINOIS |
| 35 | Adrienne Connell | 12 | DAUGHTER | — | ILLINOIS |
| 36 | William Connell | 5 | SON | — | ILLINOIS |
| 37 | John Connell | 5 | SON | — | ILLINOIS |
| 38 | Walter Connell | 2 | SON | — | ILLINOIS |
| 39 | Walter Leslie | 46 | HEAD | Meter Inspector | KENTUCKY |
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)