JW
John Wall — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this John Wall across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1870), then head of a 3-person household.
Age 70
b. ~1870
Male
Head
Born: Sweden
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Wall |
| Given Name | John O |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 70 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1870 |
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 |
|---|---|---|---|---|
| Cleo Wall | Daughter | — | 35 | ~1905 |
| John Wall | Head | — | 70 | ~1870 |
| Fredrica Wall | Spouse | — | 70 | ~1870 |
Census Appearances
1920
Cook, Illinois
Head, age 49
Cook, Illinois · implied b. ~1871 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wall |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Sweden |
| Year of Immigration | 1904 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Laborer |
| Industry | Railway |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Sweden |
| Year of Naturalization | 1910 |
| Birthplace (normalized) | sweden |
1930
Cook, Illinois
Head, age 60
Cook, Illinois · implied b. ~1870 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wall |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Sweden |
| Age at First Marriage | 34 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | 1891 |
| Class of Worker | Yes |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | O |
| Home Value / Rent | 5000 |
| Radio Set | R |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
Cook-County, Illinois
Head, age 70
Cook-County, Illinois · implied b. ~1870 — 3 household members
| Surname | Wall |
| Given Name | John O |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 70 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Naturalization Status | Naturalized |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
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 Wall across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Wall
Head · 1940 · age 70 · b. ~1870 · 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-t0627-00940-00530)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Betty Ann Quinn | 15 | Daughter | — | Minnesota |
| 2 | Jeanne Quinn | 13 | Daughter | — | Minnesota |
| 3 | John Quinn | 11 | Son | — | Minnesota |
| 4 | Paul Quinn | 9 | Son | — | Minnesota |
| 5 | Otto Sholl | 35 | Head | Maintenance | Illinois |
| 6 | Margaret O Sholl | 38 | Wife | — | Illinois |
| 7 | Robert Sholl | 19 | Son | Apprentice Aviator | Illinois |
| 8 | Miriam Sholl | 15 | Daughter | — | Illinois |
| 9 | William Sholl | 11 | Son | — | Illinois |
| 10 | Erwin Wahler | 40 | Head | Switchman | Indiana |
| 11 | Louise Wahler | 42 | Wife | — | Illinois |
| 12 | Marilyn Wahler | 8 | Daughter | — | Illinois |
| 13 | John O Wall THIS PERSON | 70 | Head | — | Sweden |
| 14 | Fredrica Wall | 70 | Wife | — | Sweden |
| 15 | Cleo Wall | 35 | Daughter | Teacher | Illinois |
| 16 | Joseph Burtch | 27 | Head | Clerk | Illinois |
| 17 | Vera O Burtch | 27 | Wife | — | Illinois |
| 18 | Patricia Burtch | 2 | Daughter | — | Illinois |
| 19 | Albert O Pfotenhaur | 29 | Head | Inspector | Illinois |
| 20 | Lillian Pfotenhaur | 28 | Wife | — | Illinois |
| 21 | Gene Pfotenhaur | 2 | Son | — | Illinois |
| 22 | Benjamin L Robson | 47 | Head | Laborer | Illinois |
| 23 | Alexina O Robson | 45 | Wife | Asst Operator | Illinois |
| 24 | Walter O Flith | 37 | Head | Maintenance | Illinois |
| 25 | Eleanor Flith | 35 | Wife | — | Illinois |
| 26 | Robert Flith | 12 | Son | — | Illinois |
| 27 | Jean Flith | 9 | Daughter | — | Illinois |
| 28 | Roland O Haynes | 38 | Head | Truck Driver | Illinois |
| 29 | Josephine Haynes | 37 | Wife | — | Illinois |
| 30 | La Verne Haynes | 15 | Daughter | — | Illinois |
| 31 | Robert Haynes | 10 | Son | — | Illinois |
| 32 | Elizabeth Haynes | 74 | Mother in law | — | Canada |
| 33 | Marguerite Stewart | 24 | Head | — | Illinois |
| 34 | Wm Stewart | 27 | Husband | Salesman | Illinois |
| 35 | Wm Stewart | 2 | Son | — | Illinois |
| 36 | Robert Stewart | 0 | Son | — | Illinois |
| 37 | Marion Mcintyre | 45 | Mother | — | Illinois |
| 38 | Wm Jahnke | 54 | Head | Semi-Print Rubber | Illinois |
| 39 | Elizabeth O Jahnke | 57 | Wife | — | Illinois |
| 40 | Wm Jr Jahnke | 27 | Son | Office Worker | 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)