JJ
Jerry Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Will-County, Illinois
Our Model Tree links this Jerry Johnson across the 1920, 1930 and 1940 US Censuses in Will-County, Illinois (XGBoost, ~Confirmed), with identified parents Charles & Ida — first a head (b.~1899), then head of a 4-person household.
Age 41
b. ~1899
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Will-County, Illinois |
| Surname | Johnson |
| Given Name | Jerry |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Wilmington City |
| 1935 Residence (County) | Will |
| Additional Details | |
| Occupation | Asst Plumber |
| Industry | Hardware Store |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1188 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Asst Plumber |
| Township / Ward | Wilmington City |
| Est. Birth Year | ~1899 |
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 Jerry | Age | Birth yr |
|---|---|---|---|---|
| Mary Johnson | Spouse | — | 35 | ~1905 |
| Jane Johnson | Daughter | — | 10 | ~1930 |
| Helen Johnson | Daughter | — | 15 | ~1925 |
| Jerry Johnson | Head | — | 41 | ~1899 |
Census Appearances
1920
Will, Illinois
Son, age 21
Will, Illinois · implied b. ~1899 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Jerry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Laborer |
| Industry | Blacksmith Shop |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Will, Illinois
Head, age 31
Will, Illinois · implied b. ~1899 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Jerry |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 24 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Laborer |
| Industry | Hardware |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | $20 |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Will-County, Illinois
Head, age 41
Will-County, Illinois · implied b. ~1899 — 4 household members
| Surname | Johnson |
| Given Name | Jerry |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Wilmington City |
| 1935 Residence (County) | Will |
| Occupation | Asst Plumber |
| Industry | Hardware Store |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1188 |
| Highest Grade | H-2 |
| 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 Jerry Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Johnson (~0.92 confidence) and mother Ida Johnson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Johnson
b. ~1868
Source father
● Household
· direct · ~0.92
Mother
Ida Johnson
b. ~1862
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Jerry Johnson
Head · 1940 · age 41 · b. ~1899 · 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 — Will-County, Illinois
Open full size
1940 US Federal Census — Will-County, Illinois
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-00909-01011)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jerry Johnson THIS PERSON | 41 | Head | Asst Plumber | Illinois |
| 2 | Mary Johnson | 35 | Wife | — | Illinois |
| 3 | Helen Johnson | 15 | Daughter | — | Illinois |
| 4 | Jane (Elizabeth) Johnson | 10 | Daughter | — | Illinois |
| 5 | Irene Foley | 60 | Head | Manager | Illinois |
| 6 | Richard Foley | 18 | Son | Janitor | Illinois |
| 7 | Hattie Ball | 48 | Roomer | Sewing | Illinois |
| 8 | Cyrus Muncey | 80 | Head | — | Illinois |
| 9 | Elizabeth Muncey | 76 | Wife | — | Illinois |
| 10 | Carl Hamlin | 35 | Head | Assy Line Operator | Iowa |
| 11 | Gladys Hamlin | 32 | Wife | — | Missouri |
| 12 | Elva Hamlin | 5 | Daughter | — | Missouri |
| 13 | Nancy Hamlin | 0 | Daughter | — | Illinois |
| 14 | Edward Kemp | 48 | Head | Beater Man | Illinois |
| 15 | Lila Kemp | 39 | Wife | — | Illinois |
| 16 | Kenneth Kemp | 18 | Son | Janitor | Illinois |
| 17 | Elmer Adams | 30 | Head | Electrician | Oklahoma |
| 18 | Gladys Adams | 26 | Wife | — | Pennsylvania |
| 19 | George Townsley | 46 | Head | Manager | Illinois |
| 20 | Abbie Townsley | 34 | Wife | — | Illinois |
| 21 | George Jr. Townsley | 8 | Son | — | Illinois |
| 22 | James Krall | 35 | Head | Machine Tender | Illinois |
| 23 | Martha Krall | 31 | Wife | — | Illinois |
| 24 | Marian Krall | 5 | Daughter | — | Illinois |
| 25 | Paul Kahler | 23 | Head | Manager | Illinois |
| 26 | Dorothy Kahler | 24 | Wife | — | Pennsylvania |
| 27 | Paul Jr. Kahler | 0 | Son | — | Illinois |
| 28 | Ara Swival | 58 | Head | Laborer | Illinois |
| 29 | Rose Swival | 55 | Wife | — | Illinois |
| 30 | Duncan Strong | 24 | Head | Asst Plumber | Illinois |
| 31 | Ruth Strong | 21 | Wife | — | Illinois |
| 32 | Carlene Strong | 3 | Daughter | — | Illinois |
| 33 | Irwin Strong | 63 | Head | — | Illinois |
| 34 | Myrtle Strong | 62 | Wife | — | Illinois |
| 35 | Warren Strong | 21 | Son | New Worker | Illinois |
| 36 | Albert Dude | 49 | Head | Tipple Boss | Illinois |
| 37 | Lorna Dude | 49 | Wife | — | Illinois |
| 38 | Carl Dude | 25 | Son | Weigh Master | Illinois |
Pedigree Summary
Jerry
Gen 1 · 2 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)