CJ
Clifford Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Massac-County, Illinois
Our Model Tree links this Clifford Johnson across the 1920, 1930 and 1940 US Censuses in Massac-County, Illinois (XGBoost, ~Confirmed), with identified parents Ed & Edward — first a son (b.~1919), then head of a 6-person household.
Age 21
b. ~1919
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Massac-County, Illinois |
| Surname | Johnson |
| Given Name | Clifford |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Massac |
| Additional Details | |
| Occupation | farming |
| Industry | farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Farming |
| Township / Ward | Hillerman Precinct |
| Est. Birth Year | ~1919 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Clifford | Age | Birth yr |
|---|---|---|---|---|
| Vera Ethridge | Daughter | — | 25 | ~1915 |
| Ed Johnson | Head | — | 59 | ~1881 |
| Charles Ethridge | Other | — | 1 | ~1939 |
| Vera Ethridge | Other | — | 3 | ~1937 |
| Clifford Johnson | Son | — | 21 | ~1919 |
| Maud Johnson | Spouse | — | 50 | ~1890 |
Census Appearances
1920
Massac, Illinois
Son, age 1
Massac, Illinois · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Clifford |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Massac, Illinois
Son, age 10
Massac, Illinois · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Clifford |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Massac-County, Illinois
Son, age 21
Massac-County, Illinois · implied b. ~1919 — 6 household members
| Surname | Johnson |
| Given Name | Clifford |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Massac |
| Occupation | farming |
| Industry | farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 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 Clifford Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ed Johnson (~0.92 confidence) and father Edward Johnson (~0.92 confidence) and father Elmer Johnson (~0.92 confidence) and mother Maud Johnson (~0.92 confidence) and mother Maud Johnson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ed Johnson
b. ~1881
Source father
● Household
· direct · ~0.92
Father
Edward Johnson
b. ~1881
Source father
● Household
· direct · ~0.92
Father
Elmer Johnson
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Maud Johnson
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Maud Johnson
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Clifford Johnson
Son · 1940 · age 21 · b. ~1919 · Illinois
★ You are viewing this record
Sibling
Vera Ethridge
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 — Massac-County, Illinois
Open full size
1940 US Federal Census — Massac-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00856-00160)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | James L Dameron | 9 | son | — | Illinois |
| 42 | Charles F Dameron | 7 | son | — | Illinois |
| 43 | Dwight @ Barnett | 46 | head | Farming | Illinois |
| 44 | Clara Barnett | 45 | wife | — | Illinois |
| 45 | Doris Barnett | 18 | daughter | — | Illinois |
| 46 | Francis Barnett | 10 | daughter | — | Illinois |
| 47 | Paul D Anderson | 32 | son-in-law | Farming | Illinois |
| 48 | Lana Anderson | 24 | daughter | — | Illinois |
| 49 | Barnett Weaver | 62 | head | Laborer | Illinois |
| 50 | Ruth @ Weaver | 54 | wife | — | Illinois |
| 51 | Jasper Weaver | 26 | son | Farming | Kansas |
| 52 | Ed Johnson | 59 | head | Laborer | Illinois |
| 53 | Maud Johnson | 50 | wife | — | Illinois |
| 54 | Clifford Johnson THIS PERSON | 21 | son | Farming | Illinois |
| 55 | Vera Ethridge | 25 | daughter | — | Illinois |
| 56 | Vera C Ethridge | 3 | granddaughter | — | Illinois |
| 57 | Charles C Ethridge | 1 | grandson | — | Illinois |
| 58 | Michael Ehratline | 60 | head | Saw Labor | Illinois |
| 59 | Rosa @ Ehratline | 47 | wife | — | Illinois |
| 60 | Claten Ehratline | 27 | son | Laborer | Illinois |
| 61 | Richard Ehratline | 22 | son | Laborer | Illinois |
| 62 | Ruth Ehratline | 16 | daughter | — | Illinois |
| 63 | Alma Theis | 69 | step-mother | — | Illinois |
| 64 | Ulysses Campbell | 71 | step-uncle | — | Illinois |
| 65 | Fred @ Riley | 48 | head | Farming | Illinois |
| 66 | Velma Riley | 44 | wife | — | Illinois |
| 67 | Virginia Riley | 16 | daughter | — | Illinois |
| 68 | Vivian Riley | 14 | daughter | — | Illinois |
| 69 | June Riley | 11 | daughter | — | Illinois |
| 70 | Robert Riley | 9 | son | — | Illinois |
| 71 | Sue Riley | 5 | daughter | — | Illinois |
| 72 | D. M. @ Barnett | 70 | head | Farming | Illinois |
| 73 | Allie Barnett | 68 | wife | — | Illinois |
| 74 | Leslie @ Barnett | 41 | head | Farming | Illinois |
| 75 | Lillian Barnett | 32 | wife | — | Illinois |
| 76 | Norma Barnett | 13 | daughter | — | Illinois |
| 77 | Robert Barnett | 10 | son | — | Illinois |
| 78 | Calvin Barnett | 8 | son | — | Illinois |
| 79 | W. H. @ Starker | 60 | head | Farming | Illinois |
| 80 | Clara Starker | 53 | wife | — | Minnesota |
Pedigree Summary
Clifford + 1 sibling
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)