CJ
Clifford Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this Clifford Johnson across the 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed), with identified parents Ruth & Maurice — first a son (b.~1915), then head of a 5-person household.
Age 25
b. ~1915
Male
Son
Born: Indiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Johnson |
| Given Name | Clifford |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Occupation | machinist |
| Industry | Chain Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 540 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Machinist |
| Township / Ward | Indianapolis |
| Est. Birth Year | ~1915 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Clifford | Age | Birth yr |
|---|---|---|---|---|
| Billy Johnson | Daughter | — | 4 | ~1936 |
| Maurice Johnson | Head | — | 44 | ~1896 |
| Mary Johnson | Other | — | 19 | ~1921 |
| Clifford Johnson | Son | — | 25 | ~1915 |
| Ruth Johnson | Spouse | — | 44 | ~1896 |
Census Appearances
1920
Marion, Indiana
Son, age 5
Marion, Indiana · implied b. ~1915 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Clifford |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Indiana |
| Occupation | none |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Marion, Indiana
Son, age 15
Marion, Indiana · implied b. ~1915 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Clifford |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Marion-County, Indiana
Son, age 25
Marion-County, Indiana · implied b. ~1915 — 5 household members
| Surname | Johnson |
| Given Name | Clifford |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Occupation | machinist |
| Industry | Chain Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 540 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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: mother Ruth Johnson (~0.92 confidence) and father Maurice Johnson (~0.92 confidence) and mother Ruth Johnson (~0.92 confidence) and mother Ruth Johnson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Ruth Johnson
b. ~1894
Source mother
● Household
· direct · ~0.92
Father
Maurice Johnson
b. ~1896
Source father
● Household
· direct · ~0.92
Mother
Ruth Johnson
b. ~1896
Source mother
● Household
· direct · ~0.92
Mother
Ruth Johnson
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Clifford Johnson
Son · 1940 · age 25 · b. ~1915 · Indiana
★ You are viewing this record
Sibling
Billy Johnson
Sibling · 1940 · age 4
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 — Marion-County, Indiana
Open full size
1940 US Federal Census — Marion-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01132-00299)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Julia Kopp | 25 | daughter | Stenographer | Indiana |
| 42 | Robert Kopp | 23 | son | Baker | Indiana |
| 43 | Mary C. Kopp | 21 | daughter | Telephone Operator | Indiana |
| 44 | Cecilia Kopp | 19 | daughter | Telephone Operator | Indiana |
| 45 | Ellen D. Kopp | 17 | daughter | — | Indiana |
| 46 | Frank Patterson | 53 | Head | Sheet Metal Worker | Indiana |
| 47 | Anna Patterson | 59 | wife | — | Indiana |
| 48 | Charles Patterson | 24 | son | Mechanic | Indiana |
| 49 | Fannie Dempsey | 71 | aunt | — | Indiana |
| 50 | Herman Wolf | 37 | Head | Buttermaker | Indiana |
| 51 | Margaret Wolf | 40 | wife | — | Indiana |
| 52 | James Wolf | 10 | son | — | Indiana |
| 53 | Donald Wolf | 7 | son | — | Indiana |
| 54 | Mary Ann Wolf | 2 | daughter | — | Indiana |
| 55 | William Turner | 32 | Head | Inspector | Indiana |
| 56 | Opal Turner | 22 | wife | — | Illinois |
| 57 | Carolyn J. Turner | 2 | daughter | — | Indiana |
| 58 | Carl Bernhardt | 39 | Head | Meat Cutter | Indiana |
| 59 | Julia Bernhardt | 40 | wife | — | Indiana |
| 60 | Elizabeth Bernhardt | 16 | daughter | — | Indiana |
| 61 | Lawrence Bernhardt | 13 | son | — | Indiana |
| 62 | Patricia Ann Bernhardt | 7 | daughter | — | Indiana |
| 63 | Josephine Bernhardt | 4 | daughter | — | Indiana |
| 64 | John Mulryan | 80 | Father-in-law | — | Ireland |
| 65 | Maurice Johnson | 44 | Head | Machinist | Illinois |
| 66 | Ruth Johnson | 44 | wife | — | Indiana |
| 67 | Clifford Johnson THIS PERSON | 25 | son | Machinist | Indiana |
| 68 | Mary Johnson | 19 | daughter-in-law | — | Indiana |
| 69 | Billy M. Johnson | 4 | daughter | — | Indiana |
| 70 | Frank Le Bau | 52 | Head | Cook | Hungary |
| 71 | Frank Le Bau | 29 | son | Shipping Clerk | Indiana |
| 72 | Edward Le Bau | 24 | son | Printer | Indiana |
| 73 | Mary K. Le Bau | 27 | daughter-in-law | — | Indiana |
| 74 | Patricia J. Le Bau | 1 | daughter | — | Indiana |
| 75 | Fred Judkins | 32 | son-in-law | Truck Manager | Michigan |
| 76 | Ella Judkins | 30 | daughter | Bookkeeper | Indiana |
| 77 | Oscar Wiseman | 43 | Head | Caretaker | Indiana |
| 78 | Marie Wiseman | 44 | wife | Sales Clerk | Indiana |
| 79 | Asa Trent | 53 | lodger | Sales Clerk | Indiana |
| 80 | Jesse D. Todd | 43 | Head | Mail Carrier | Indiana |
Pedigree Summary
Clifford + 1 sibling
Gen 1 · 4 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)