JF
John Fisher — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this John Fisher across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Samuel & Ralph — first a son (b.~1917), then head of a 8-person household.
Age 23
b. ~1917
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Fisher |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Janitor |
| Industry | Biscuit Co |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 360 |
| Highest Grade | 8 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Janitor |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1917 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Jean Fisher | Daughter | — | 8 | ~1932 |
| Elaine Fisher | Daughter | — | 10 | ~1930 |
| Vera Peck | Daughter | — | 25 | ~1915 |
| Samuel Fisher | Head | — | 51 | ~1889 |
| Roy Peck | Other | — | 26 | ~1914 |
| John Ames | Other | — | 65 | ~1875 |
| John Fisher | Son | — | 23 | ~1917 |
| Dora Fisher | Spouse | — | 43 | ~1897 |
Census Appearances
1920
Cook, Illinois
Son, age 2
Cook, Illinois · implied b. ~1918 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fisher |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 13
Cook, Illinois · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fisher |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 23
Cook-County, Illinois · implied b. ~1917 — 8 household members
| Surname | Fisher |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Janitor |
| Industry | Biscuit Co |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 360 |
| Highest Grade | 8 |
| 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 John Fisher across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Samuel Fisher (~0.92 confidence) and father Ralph Fisher (~0.92 confidence) and mother Katharine Fisher (~0.92 confidence) and mother Anna Fisher (~0.92 confidence) and mother Dora Fisher (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Samuel Fisher
b. ~1889
Source father
● Household
· direct · ~0.92
Father
Ralph Fisher
b. ~1895
Source father
● Household
· direct · ~0.92
Mother
Katharine Fisher
b. ~1896
Source mother
● Household
· direct · ~0.92
Mother
Anna Fisher
b. ~1894
Source mother
● Household
· direct · ~0.92
Mother
Dora Fisher
b. ~1897
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Fisher
Son · 1940 · age 23 · b. ~1917 · Illinois
★ You are viewing this record
Sibling
Elaine Fisher
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jean Fisher
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vera Peck
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-t0627-00986-00166)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Oscar Grimm | 51 | Head | — | Illinois |
| 2 | Marie Grimm | 43 | Wife | — | Illinois |
| 3 | Bernice Grimm | 22 | daughter | Stenographer | Illinois |
| 4 | Dorothy Grimm | 21 | daughter | Inspector | Illinois |
| 5 | Willard Grimm | 18 | son | Printer | Illinois |
| 6 | James Grimm | 16 | son | — | Illinois |
| 7 | Carl Williamson | 56 | Head | Watchman | Denmark |
| 8 | Walter Frelk | 49 | Head | Toolmaker | Poland |
| 9 | Marie Frelk | 35 | wife | — | Illinois |
| 10 | Muriel Frelk | 12 | daughter | — | Illinois |
| 11 | Dean Frelk | 8 | son | — | Illinois |
| 12 | Diane Frelk | 6 | daughter | — | Illinois |
| 13 | Ronald Frelk | 5 | son | — | Illinois |
| 14 | Joseph Krieger | 32 | Head | Handyman | Michigan |
| 15 | Rose Krieger | 29 | wife | — | Illinois |
| 16 | Rosemarie Krieger | 3 | daughter | — | Illinois |
| 17 | Lewis Krieger | 1 | son | — | Illinois |
| 18 | Otto Lau | 32 | Head | Laborer | Germany |
| 19 | Hilda Lau | 29 | wife | — | Illinois |
| 20 | Otto Jr Lau | 6 | son | — | Illinois |
| 21 | Dorothy Lau | 3 | daughter | — | Illinois |
| 22 | Jeff Scotty | 30 | Head | Buffer | Illinois |
| 23 | Elsie Scotty | 30 | wife | Cashier | Illinois |
| 24 | Samuel Fisher | 51 | Head | Baker | Russia |
| 25 | Dora Fisher | 43 | wife | — | Illinois |
| 26 | John Fisher THIS PERSON | 23 | son | Janitor | Illinois |
| 27 | Elaine Fisher | 10 | daughter | — | Illinois |
| 28 | Jean Fisher | 8 | daughter | — | Illinois |
| 29 | Vera Peck | 25 | daughter | Packer | Illinois |
| 30 | Roy Peck | 26 | Lodger | Truck Driver | Pennsylvania |
| 31 | John L Ames | 65 | Lodger | — | Michigan |
| 32 | Stanley Trawinski | 51 | Head | Filer | Pennsylvania |
| 33 | Celia Trawinski | 28 | wife | Imprinter | Illinois |
| 34 | Anthony Trawinski | 26 | son | Gluer | Illinois |
| 35 | Marie Trawinski | 22 | daughter | — | Illinois |
| 36 | Theodore Eilertsen | 49 | Head | Truck Helper | Denmark |
| 37 | Catherine Eilertsen | 50 | wife | — | Denmark |
| 38 | Herbert Eilertsen | 21 | son | Extractor | Illinois |
| 39 | Robert Eilertsen | 19 | son | Machinist | Illinois |
| 40 | Ethel Eilertsen | 11 | daughter | — | Illinois |
Pedigree Summary
John + 3 siblings
Gen 1 · 5 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)