RJ
Ruth Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Oklahoma-County, Oklahoma
Our Model Tree links this Ruth Johnson across the 1920, 1930 and 1940 US Censuses in Oklahoma-County, Oklahoma (XGBoost, ~Confirmed), with identified parents Clancy & Oliver — first a daughter (b.~1906), then head of a 4-person household.
Age 34
b. ~1906
Female
Daughter
Born: Oklahoma
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Oklahoma-County, Oklahoma |
| Surname | Johnson |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Oklahoma City |
| 1935 Residence (County) | Oklahoma |
| Additional Details | |
| Occupation | Comptometer |
| Industry | Bank |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
| Occupation | Comptometer |
| Township / Ward | Oklahoma City |
| Est. Birth Year | ~1906 |
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 Ruth | Age | Birth yr |
|---|---|---|---|---|
| Margaret Johnson | Daughter | — | 32 | ~1908 |
| Ruth Johnson | Daughter | — | 34 | ~1906 |
| Oliver Johnson | Head | — | 65 | ~1875 |
| Ethel Johnson | Spouse | — | 55 | ~1885 |
Census Appearances
1920
Oklahoma, Oklahoma
Daughter, age 14
Oklahoma, Oklahoma · implied b. ~1906 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Indiana |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1930
Oklahoma, Oklahoma
Daughter, age 24
Oklahoma, Oklahoma · implied b. ~1906 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Indiana |
| Occupation | Stenographer |
| Industry | Oil Company |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1940
Oklahoma-County, Oklahoma
Daughter, age 34
Oklahoma-County, Oklahoma · implied b. ~1906 — 4 household members
| Surname | Johnson |
| Given Name | Ruth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Oklahoma City |
| 1935 Residence (County) | Oklahoma |
| Occupation | Comptometer |
| Industry | Bank |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
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 Ruth Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Clancy Johnson (~0.92 confidence) and father Oliver Johnson (~0.92 confidence) and mother Ethel Johnson (~0.92 confidence) and mother Ethel Johnson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Clancy Johnson
b. ~1875
Source father
● Household
· direct · ~0.92
Father
Oliver Johnson
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Ethel Johnson
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Ethel Johnson
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ruth Johnson
Daughter · 1940 · age 34 · b. ~1906 · Oklahoma
★ You are viewing this record
Sibling
Margaret Johnson
Sibling · 1940 · age 32
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 — Oklahoma-County, Oklahoma
Open full size
1940 US Federal Census — Oklahoma-County, Oklahoma
Page Contents
33 people indexed on this census page (nara:1940:m-t0627-03343-00409)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Otto Rayhill | 19 | Son | Newsboy | Illinois |
| 42 | Arthur Rayhill | 18 | Son | Newsboy | Illinois |
| 43 | Mike Jr. Rayhill | 14 | Son | — | Oklahoma |
| 44 | Flynn W. Boley | 32 | Head | Sales Supervisor | Texas |
| 45 | Marian M. (X) Boley | 28 | Wife | — | Texas |
| 46 | Mynese J. Boley | 8 | Daughter | — | Oklahoma |
| 47 | James Warren Boley | 7 | Son | — | Oklahoma |
| 48 | Janet Margaret Boley | 1 | Daughter | — | Oklahoma |
| 49 | Oliver P. Johnson | 65 | Head | Roadmaster | Illinois |
| 50 | Ethel (X) Johnson | 55 | Wife | — | Indiana |
| 51 | Ruth Johnson THIS PERSON | 34 | Daughter | Comptometer | Oklahoma |
| 52 | Margaret Johnson | 32 | Daughter | Bookkeeper | Oklahoma |
| 53 | Elliott (X) Mcbride | 37 | Head | Inspector | Oklahoma |
| 54 | Alice Helen Mcbride | 50 | Wife | — | Arkansas |
| 55 | Charles F. Moran | 28 | Head | Salesman | Oklahoma |
| 56 | Rachel L. (X) Moran | 27 | Wife | — | Oklahoma |
| 57 | Karen Beth Moran | 1 | Daughter | — | Oklahoma |
| 58 | Edward Maestri | 27 | Head | Salesman | Arkansas |
| 59 | Billie B. Maestri | 22 | Wife | — | Oklahoma |
| 60 | Dolores Ann Maestri | 0 | Daughter | — | Oklahoma |
| 61 | Erlow C. (X) Bailey | 40 | Head | Poultry Equipment | Indiana |
| 62 | Mabel Jane Bailey | 40 | Wife | — | Texas |
| 63 | Mary Jean Bailey | 19 | Daughter | — | Oklahoma |
| 64 | Johnnie L. Dewitt | 70 | Mother-in-law | — | Tennessee |
| 65 | Junior Johnson | 27 | Head | Laborer | Oklahoma |
| 66 | Leola (X) Johnson | 25 | Wife | Housekeeper | Oklahoma |
| 67 | Elizabeth Simmons | 65 | Head | — | Tennessee |
| 68 | Virginia M. Simmons | 33 | Daughter | Saleswoman | Oklahoma |
| 69 | Harriet Ann Simmons | 26 | Daughter | Secretary | Oklahoma |
| 70 | Irene Simmons | 14 | Daughter | — | Oklahoma |
| 71 | Raymond Deporter | 49 | Head | Medical Lab Tech | Russia |
| 72 | Florence (X) Deporter | 46 | Wife | — | New York |
| 73 | Anton R. Deporter | 11 | Son | — | Oklahoma |
Pedigree Summary
Ruth + 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)