SJ
Samuel Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Knox-County, Illinois
Our Model Tree links this Samuel Johnson across the 1920, 1930 and 1940 US Censuses in Knox-County, Illinois (XGBoost, ~Confirmed), with identified parents Samuel — first a son (b.~1898), then head of a 3-person household.
Age 42
b. ~1898
Male
Son
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Knox-County, Illinois |
| Surname | Johnson |
| Given Name | Samuel A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Knox |
| Additional Details | |
| Occupation | Press Operator |
| Industry | Mfg. Co |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 571 |
| Highest Grade | No 8 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Press Operator |
| Township / Ward | Galesburg City |
| Est. Birth Year | ~1898 |
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 Samuel | Age | Birth yr |
|---|---|---|---|---|
| Samuel Johnson | Head | — | 72 | ~1868 |
| Eileen Johnson | Other | — | 24 | ~1916 |
| Samuel Johnson | Son | — | 42 | ~1898 |
Census Appearances
1920
Knox, Illinois
Son, age 22
Knox, Illinois · implied b. ~1898
●
Primary link
· ~Confirmed · 1 source
XGBoost
| Surname | Johnson |
| Given Name | Samuel |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Farmlabour |
| Industry | At home |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Knox, Illinois
Son, age 32
Knox, Illinois · implied b. ~1898 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Samuel A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Farm Laborer |
| Industry | General farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Knox-County, Illinois
Son, age 42
Knox-County, Illinois · implied b. ~1898 — 3 household members
| Surname | Johnson |
| Given Name | Samuel A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Knox |
| Occupation | Press Operator |
| Industry | Mfg. Co |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 571 |
| 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 Samuel Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Samuel Johnson (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Samuel Johnson
b. ~1868
Source father
● Household
· direct · ~0.92
This person
Anchor record
Samuel Johnson
Son · 1940 · age 42 · b. ~1898 · 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 — Knox-County, Illinois
Open full size
1940 US Federal Census — Knox-County, Illinois
Page Contents
26 people indexed on this census page (nara:1940:m-t0627-00826-00322)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Muriel Wakefield | 50 | Wife | — | Illinois |
| 42 | Dora Webber | 78 | Mother | — | Illinois |
| 43 | Byrad E. Hare | 54 | Head | Fireman | Illinois |
| 44 | Edna V. Hare | 48 | Wife | — | Illinois |
| 45 | John A. Peterson | 76 | Head | Constable | Sweden |
| 46 | Annie Peterson | 81 | Wife | — | Sweden |
| 47 | C. E. Folger | 68 | Head | — | Ohio |
| 48 | Minnie Folger | 68 | Wife | — | Illinois |
| 49 | Charles Josefson | 78 | Head | — | Sweden |
| 50 | Emma Josefson | 79 | Wife | — | Sweden |
| 51 | Floyd Dennis | 41 | Head | Cab Carpenter | Illinois |
| 52 | Mabel B. Dennis | 38 | Wife | — | Illinois |
| 53 | Eugene Dennis | 13 | Son | — | Illinois |
| 54 | Samuel O. Johnson | 72 | Head | — | Sweden |
| 55 | Samuel A. Johnson THIS PERSON | 42 | Son | Press Operator | Illinois |
| 56 | Eileen B. Johnson | 24 | Daughter-in-law | — | Illinois |
| 57 | Russell Wignall | 39 | Head | Brakeman | Iowa |
| 58 | Inez Wignall | 30 | Wife | — | Iowa |
| 59 | Evelyn Wignall | 17 | Daughter | Maid | Iowa |
| 60 | Wayne Wignall | 9 | Son | — | Illinois |
| 61 | Richard Wignall | 5 | Son | — | Illinois |
| 62 | Dean Wignall | 2 | Son | — | Illinois |
| 63 | Rose Reeves | 74 | Mother-in-law | — | Washington |
| 64 | Paul Reeves | 34 | Brother-in-law | Track Laborer | Iowa |
| 65 | Willard Holger | 44 | Head | Laborer | Illinois |
| 66 | Elizabeth Holger | 52 | Wife | — | Missouri |
Pedigree Summary
Samuel
Gen 1 · 1 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)