GJ
Gerald Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Henderson-County, Illinois
Our Model Tree links this Gerald Johnson across the 1930 and 1940 US Censuses in Henderson-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1921), then head of a 11-person household.
Age 19
b. ~1921
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Henderson-County, Illinois |
| Surname | Johnson |
| Given Name | Gerald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Henderson |
| Additional Details | |
| Occupation | Farm laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 160 |
| Highest Grade | No 8 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Farm Laborer |
| Township / Ward | Biggsville Twp |
| Est. Birth Year | ~1921 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Gerald | Age | Birth yr |
|---|---|---|---|---|
| Floyd Johnson | Other | — | 3 | ~1937 |
| Loris Johnson | Daughter | — | 8 | ~1932 |
| Margie Johnson | Other | — | 22 | ~1918 |
| Earl Johnson | Son | — | 20 | ~1920 |
| Floyd Johnson | Head | — | 41 | ~1899 |
| Helen Johnson | Spouse | — | 42 | ~1898 |
| Edwin Johnson | Son | — | 11 | ~1929 |
| Clifford Johnson | Son | — | 3 | ~1937 |
| Alleyne Johnson | Daughter | — | 5 | ~1935 |
| Gerald Johnson | Son | — | 19 | ~1921 |
| Ida Johnson | Other | — | 1 | ~1939 |
Census Appearances
1930
Henderson, Illinois
Son, age 9
Henderson, Illinois · implied b. ~1921 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Gerald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Henderson-County, Illinois
Son, age 19
Henderson-County, Illinois · implied b. ~1921 — 11 household members
| Surname | Johnson |
| Given Name | Gerald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Henderson |
| Occupation | Farm laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 160 |
| Highest Grade | No 8 |
| 1935 Residence | Illinois |
| 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 Gerald Johnson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Gerald Johnson
Son · 1940 · age 19 · b. ~1921 · Illinois
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Sibling
Earl Johnson
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alleyne Johnson
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edwin Johnson
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Loris Johnson
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clifford Johnson
Sibling · 1940 · age 3
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 — Henderson-County, Illinois
Open full size
1940 US Federal Census — Henderson-County, Illinois
Page Contents
36 people indexed on this census page (nara:1940:m-t0627-00811-00044)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Walter D. Johnson | 21 | Head | Farmer | Illinois |
| 2 | Merle Johnson | 21 | Wife | — | Illinois |
| 3 | James Johnson | 4 | Son | — | Illinois |
| 4 | Margaret Johnson | 3 | Daughter | — | Illinois |
| 5 | Walter Johnson | 2 | Son | — | Illinois |
| 6 | Mary Smith | 67 | Grandmother | — | Illinois |
| 7 | Charles P. Baldwin | 30 | Head | Farmer | Illinois |
| 8 | Maxine Baldwin | 26 | Wife | — | Illinois |
| 9 | Carol Baldwin | 5 | Daughter | — | Iowa |
| 10 | Neil D. Mcvey | 22 | Head | Farmer | Illinois |
| 11 | Gladys Mcvey | 30 | Wife | — | Illinois |
| 12 | Fred Bollman | 49 | Head | Farmer | Illinois |
| 13 | Robert Bollman | 36 | Brother | Farmer | Illinois |
| 14 | Hannah Bollman | 40 | Sister | — | Illinois |
| 15 | Jessie Bollman | 81 | Mother | — | Sweden |
| 16 | Charles Bollman | 59 | Brother | Electrician | Illinois |
| 17 | Glenn D. Bipler | 50 | Head | Farmer | Illinois |
| 18 | Kate Bipler | 80 | Mother | — | Illinois |
| 19 | Parker W. Gridley | 47 | Head | Farmer | Illinois |
| 20 | Emma Gridley | 43 | Wife | School Teacher | Illinois |
| 21 | Woodrow Salter | 27 | Head | Farmer | Illinois |
| 22 | Esther Salter | 24 | Wife | — | Idaho |
| 23 | Rosellyn Salter | 5 | Daughter | — | Iowa |
| 24 | Henry Ballman | 42 | Head | Farm Laborer | Illinois |
| 25 | Margaret Ballman | 37 | Wife | — | Illinois |
| 26 | Floyd Johnson | 41 | Head | Farmer | Illinois |
| 27 | Helen Johnson | 42 | Wife | — | Illinois |
| 28 | Gerald Johnson THIS PERSON | 19 | Son | Farm Laborer | Illinois |
| 29 | Edwin Johnson | 11 | Son | — | Illinois |
| 30 | Loris Johnson | 8 | Daughter | — | Illinois |
| 31 | Alleyne Johnson | 5 | Daughter | — | Illinois |
| 32 | Clifford Johnson | 3 | Son | — | Illinois |
| 33 | Earl Johnson | 20 | Son | Farmer | Illinois |
| 34 | Margie Johnson | 22 | Daughter-in-law | — | Illinois |
| 35 | Floyd Johnson | 3 | Grandson | — | Illinois |
| 36 | Ida May Johnson | 1 | Granddaughter | — | 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)