RJ
Roy Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Oklahoma-County, Oklahoma
Our Model Tree links this Roy Johnson across the 1920, 1930 and 1940 US Censuses in Oklahoma-County, Oklahoma (XGBoost, ~Confirmed), with identified parents Swan & Swanson — first a son (b.~1900), then head of a 5-person household.
Age 40
b. ~1900
Male
Son
Born: Oklahoma
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Oklahoma-County, Oklahoma |
| Surname | Johnson |
| Given Name | Roy E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Oklahoma City |
| 1935 Residence (County) | Oklahoma |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
| Township / Ward | Oklahoma City |
| Est. Birth Year | ~1900 |
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 Roy | Age | Birth yr |
|---|---|---|---|---|
| Minnie Johnson | Head | — | 69 | ~1871 |
| Marciel Johnson | Other | — | 25 | ~1915 |
| Roy Johnson | Son | — | 40 | ~1900 |
| Kenneth Johnson | Son | — | 30 | ~1910 |
| Raymond Johnson | Son | — | 42 | ~1898 |
Census Appearances
1920
Oklahoma, Oklahoma
Son, age 19
Oklahoma, Oklahoma · implied b. ~1901 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Roy E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Illinois |
| Occupation | File Clerk |
| Industry | Oil Co. |
| Class of Worker | W |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1930
Oklahoma, Oklahoma
Son, age 30
Oklahoma, Oklahoma · implied b. ~1900 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Roy E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1940
Oklahoma-County, Oklahoma
Son, age 40
Oklahoma-County, Oklahoma · implied b. ~1900 — 5 household members
| Surname | Johnson |
| Given Name | Roy E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Oklahoma City |
| 1935 Residence (County) | Oklahoma |
| Class of Worker | 0 |
| Highest Grade | H 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 Roy Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Swan Johnson (~0.92 confidence) and father Swanson Johnson (~0.92 confidence) and mother Munaie Johnson (~0.92 confidence) and mother Minnie Johnson (~0.92 confidence) and mother Minnie Johnson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Swan Johnson
b. ~1864
Source father
● Household
· direct · ~0.92
Father
Swanson Johnson
b. ~1865
Source father
● Household
· direct · ~0.92
Mother
Munaie Johnson
b. ~1871
Source mother
● Household
· direct · ~0.92
Mother
Minnie Johnson
b. ~1871
Source mother
● Household
· direct · ~0.92
Mother
Minnie Johnson
b. ~1871
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Roy Johnson
Son · 1940 · age 40 · b. ~1900 · Oklahoma
★ You are viewing this record
Sibling
Kenneth Johnson
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Johnson
Sibling · 1940 · age 42
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
40 people indexed on this census page (nara:1940:m-t0627-03344-00141)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Sam A. Hutsell | 51 | Head | Clerk | Tennessee |
| 42 | Kathaleen Hutsell | 34 | Wife | — | Oklahoma |
| 43 | Elaine Hutsell | 11 | Daughter | — | Oklahoma |
| 44 | Charles E. Griffith | 36 | Head | Asst. Manager | Wisconsin |
| 45 | Imogene Griffith | 26 | Wife | — | Oklahoma |
| 46 | Gay Griffith | 4 | Daughter | — | Louisiana |
| 47 | Charles Jr. Griffith | 4 | Son | — | Louisiana |
| 48 | David M. Griffith | 0 | Son | — | Louisiana |
| 49 | Lucille Melton | 55 | Mother-in-law | — | Texas |
| 50 | William H. Valentine | 49 | Head | Driller | Tennessee |
| 51 | Edna Valentine | 46 | Wife | — | Oklahoma |
| 52 | Kenneth M. Valentine | 8 | Son | — | Oklahoma |
| 53 | Donna C. Valentine | 7 | Daughter | — | Oklahoma |
| 54 | Harold K. Valentine | 4 | Son | — | Oklahoma |
| 55 | Eugene Acree | 24 | Brother-in-law | Stenographic Clerk | Oklahoma |
| 56 | Claude P. Hickens | 36 | Head | Owner-Manager | Oklahoma |
| 57 | Adora B. Hickens | 31 | Wife | — | Oklahoma |
| 58 | Donald L. Hickens | 5 | Son | — | Oklahoma |
| 59 | Ronald D. Hickens | 5 | Son | — | Oklahoma |
| 60 | Joseph J. O'Loughline | 57 | Head | State (Asst.) Probation Officer | New York |
| 61 | Ruby D. O'Loughline | 54 | Wife | — | West Virginia |
| 62 | Mary M. O'Loughline | 26 | Daughter | Secretary | Europe |
| 63 | Charles P. O'Loughline | 24 | Son | — | West Virginia |
| 64 | Joseph M. O'Loughline | 23 | Son | — | West Virginia |
| 65 | Elizabeth J. O'Loughline | 21 | Daughter | — | Oklahoma |
| 66 | Ruby B. O'Loughline | 18 | Daughter | — | Oklahoma |
| 67 | Bernard J. O'Loughline | 15 | Son | — | Oklahoma |
| 68 | Mary L. Cheuvront | 81 | Mother-in-law | — | West Virginia |
| 69 | Minnie E. Johnson | 69 | Head | — | Illinois |
| 70 | Raymond O. Johnson | 42 | Son | Auditor | Oklahoma |
| 71 | Roy E. Johnson THIS PERSON | 40 | Son | — | Oklahoma |
| 72 | Kenneth C. Johnson | 30 | Son | Salesman | Oklahoma |
| 73 | Marciel Johnson | 25 | Daughter-in-law | School Teacher | Texas |
| 74 | Edward C. Mason | 48 | Head | Professor | Maryland |
| 75 | Edwina Mason | 45 | Wife | — | Missouri |
| 76 | Mary Martha Mason | 12 | Daughter | — | Illinois |
| 77 | Edward R. Mason | 9 | Son | — | Michigan |
| 78 | James Mills | 54 | Head | Minister | England |
| 79 | Hilda Mills | 43 | Wife | — | Pennsylvania |
| 80 | Hilda Mills | 21 | Daughter | — | Pennsylvania |
Pedigree Summary
Roy + 2 siblings
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)