JF
John Fowler — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this John Fowler across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed), with identified parents Albert & Mary — first a son (b.~1913), then head of a 4-person household.
Age 27
b. ~1913
Male
Son
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Fowler |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Occupation | Clerk |
| Industry | Electric Supplies |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1200 |
| Highest Grade | C 2 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Clerk |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1913 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Albert Fowler | Head | — | 59 | ~1881 |
| Elizabeth Shontz | Other | — | 87 | ~1853 |
| John Fowler | Son | — | 27 | ~1913 |
| Mary Fowler | Spouse | — | 57 | ~1883 |
Census Appearances
1920
Cook, Illinois
Son, age 7
Cook, Illinois · implied b. ~1913 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fowler |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Cook, Illinois
Son, age 17
Cook, Illinois · implied b. ~1913 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Fowler |
| Given Name | John A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Cook-County, Illinois
Son, age 27
Cook-County, Illinois · implied b. ~1913 — 4 household members
| Surname | Fowler |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Clerk |
| Industry | Electric Supplies |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1200 |
| Highest Grade | C 2 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Fowler across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Albert Fowler (~0.92 confidence) and mother Mary Fowler (~0.92 confidence) and mother Mary Fowler (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Albert Fowler
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Mary Fowler
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Mary Fowler
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Fowler
Son · 1940 · age 27 · b. ~1913 · 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
38 people indexed on this census page (nara:1940:m-t0627-00934-00514)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | William J. Smith | 26 | Son | Clerk | Missouri |
| 42 | Anne J. Smith | 15 | Daughter | — | Missouri |
| 43 | Albert A. Dimond | 64 | Head | — | Illinois |
| 44 | Margaret Dimond | 60 | Wife | — | Illinois |
| 45 | Lloyd E. Dimond | 32 | Son | Chemist | Illinois |
| 46 | Gunnar C. Amundsen | 43 | Head | Foreman | Illinois |
| 47 | Elsie @ Amundsen | 39 | Wife | — | Oklahoma |
| 48 | James W. Hughes | 37 | Head | Salesman | Ohio |
| 49 | Ethel @ Hughes | 23 | Wife | — | Illinois |
| 50 | John Hughes | 2 | Son | — | Illinois |
| 51 | James H. Mcneil | 41 | Head | Mail Carrier | W. Virginia |
| 52 | Georgia Mcneil | 29 | Wife | — | Kansas |
| 53 | G. Allen Dean | 23 | Brother-in-law | — | Kansas |
| 54 | Emmett T. Howard | 39 | Head | Manager | Illinois |
| 55 | Marie Howard | 38 | Wife | — | Illinois |
| 56 | Helen @ Joyce | 36 | Sister-in-law | Teacher | Illinois |
| 57 | Lawrence Rubenstein | 31 | Head | Salesman | Illinois |
| 58 | Helena Rubenstein | 25 | Sister | — | Illinois |
| 59 | Theophil Reuther | 71 | Head | — | Michigan |
| 60 | Barbara Reuther | 62 | Wife | — | Michigan |
| 61 | Albert W. Fowler | 59 | Head | Office Manager | Iowa |
| 62 | Mary S. @ Fowler | 57 | Wife | — | Iowa |
| 63 | John A. Fowler THIS PERSON | 27 | Son | Clerk | Iowa |
| 64 | Elizabeth Shontz | 87 | Mother-in-law | — | Maine |
| 65 | George Lewis | 71 | Head | — | Illinois |
| 66 | Thomas Lewis | 65 | Brother | Clerk | Illinois |
| 67 | George Lewis | 51 | Head | Clerk | Ohio |
| 68 | Mabel @ Lewis | 43 | Wife | — | Illinois |
| 69 | Ann Lewis | 14 | Daughter | — | Illinois |
| 70 | Edwin Fringer | 45 | Brother-in-law | — | Illinois |
| 71 | August Serphin | 67 | Head | Stair-Builder | Sweden |
| 72 | Sofia @ Serphin | 66 | Wife | — | Sweden |
| 73 | Frank Myers | 64 | Head | Owner | Russia |
| 74 | Anna Myers | 62 | Wife | — | Russia |
| 75 | Morris Cooper | 53 | Head | Owner | Germany |
| 76 | Lillian Cooper | 50 | Wife | Clerk | Illinois |
| 77 | Sylvia @ Tagen | 31 | Daughter | — | Illinois |
| 78 | Barbara Tagen | 6 | Granddaughter | — | 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)