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John Mcconnell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this John Mcconnell across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Charles & Charles — first a head (b.~1915), then head of a 3-person household.
Age 25
b. ~1915
Male
Head
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | McConnell |
| Given Name | John N. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | Evanston City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Salesman |
| Industry | Laboratory Supply Mfg. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2000 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Salesman |
| Township / Ward | Evanston City |
| Est. Birth Year | ~1915 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Mcconnell | Head | — | 25 | ~1915 |
| Bett Mcconnell | Spouse | — | 26 | ~1914 |
| John Mcconnell | Son | — | ~1940 |
Census Appearances
1920
Cook, Illinois
Son, age 5
Cook, Illinois · implied b. ~1915 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McConnell |
| Given Name | John H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Illinois |
| Mother's Birthplace | New York |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Cook, Illinois
Son, age 15
Cook, Illinois · implied b. ~1915 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McConnell |
| Given Name | John N. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Illinois |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Cook-County, Illinois
Head, age 25
Cook-County, Illinois · implied b. ~1915 — 3 household members
| Surname | McConnell |
| Given Name | John N. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | Evanston City |
| 1935 Residence (County) | Cook |
| Occupation | Salesman |
| Industry | Laboratory Supply Mfg. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2000 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 John Mcconnell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Mcconnell (~0.92 confidence) and father Charles Mcconnell (~0.92 confidence) and mother Edith Mcconnell (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Mcconnell
b. ~1882
Source father
● Household
· direct · ~0.92
Father
Charles Mcconnell
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Edith Mcconnell
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Mcconnell
Head · 1940 · age 25 · b. ~1915 · Illinois
★ You are viewing this record
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-t0627-00779-00104)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Wilbur Smith | 47 | Son | Laborer | South Carolina |
| 2 | Olie Jones | 38 | Head | Servant | Kentucky |
| 3 | Henry L. Jones | 18 | Daughter | Newsboy | Kentucky |
| 4 | Lulu Jones | 16 | Daughter | Servant | Kentucky |
| 5 | Ben Halle | 60 | Lodger | Butler | Mississippi |
| 6 | Mabel Halle | 38 | Lodger's wife | Maid | Arkansas |
| 7 | Ray Tillman | 41 | Lodger | Cook | North Carolina |
| 8 | Wilma Tillman | 42 | Lodger's wife | Servant | Kentucky |
| 9 | William Marion | 61 | Head | Laborer | South Carolina |
| 10 | Fanny Marion | 60 | Wife | — | South Carolina |
| 11 | Joseph O. Butler | 43 | Head | Mover | Maryland |
| 12 | Sarah Butler | 38 | Wife | — | Tennessee |
| 13 | Oliver Butler | 13 | Son | — | Illinois |
| 14 | Eleanor Bell | 55 | Sister-in-law | Servant | Illinois |
| 15 | Sterling Dunn | 47 | Head | Laborer | Tennessee |
| 16 | Mattie Dunn | 45 | Wife | Laundress | Tennessee |
| 17 | Solomon Bowie | 31 | Lodger | Porter | South Carolina |
| 18 | Annabelle Bowie | 23 | Lodger's wife | — | Pennsylvania |
| 19 | Patricia Bowie | 0 | Lodger's daughter | — | Illinois |
| 20 | Henry P. Luke | 42 | Brother-in-law | Truck Driver | Germany |
| 21 | Glen Nelson | 24 | Partner | Bellhop | Kansas |
| 22 | Harold Johnson | 23 | Partner | Fountain Clerk | Kansas |
| 23 | Eric Mackinnon | 21 | Partner | Bus Boy | Canada |
| 24 | Edith Anderson | 47 | Head | Waitress | Canada |
| 25 | William H. Anderson | 22 | Son | Plant Fireman | Illinois |
| 26 | Robert S. Anderson | 18 | Son | Filing Clerk | Illinois |
| 27 | Thomas J. Anderson | 10 | Son | — | Illinois |
| 28 | John T. Jr. Hunter | 47 | Head | Teamster | Georgia |
| 29 | Hattie Hunter | 33 | Wife | Servant | North Carolina |
| 30 | Lillian Lenn | 43 | Aunt | — | Kentucky |
| 31 | Joseph Beating | 59 | Head | Custodian | Luxembourg |
| 32 | Susana Beating | 51 | Wife | — | Luxembourg |
| 33 | Clarence Beating | 15 | Son | — | Wisconsin |
| 34 | Catherine Beating | 14 | Daughter | — | Wisconsin |
| 35 | John N. Mcconnell THIS PERSON | 25 | Head | Salesman | New York |
| 36 | Bett K. Mcconnell | 26 | Wife | — | Kenilworth |
| 37 | John T. Mcconnell | 0 | Son | — | Illinois |
| 38 | Otto Mily | 40 | Head | Chauffeur | Illinois |
| 39 | Bertha Mily | 37 | Wife | — | Illinois |
| 40 | Otto, Jr. Mily | 15 | Son | — | Illinois |
Pedigree Summary
John
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)