RC
Richard Campbell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Roger-Mills-County, Oklahoma
Our Model Tree links this Richard Campbell across the 1920, 1930 and 1940 US Censuses in Roger-Mills-County, Oklahoma (XGBoost, ~Confirmed), with identified parents Archie & Mike — first a son (b.~1920), then head of a 3-person household.
Age 20
b. ~1920
Male
Son
Born: Oklahoma
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Roger-Mills-County, Oklahoma |
| Surname | Campbell |
| Given Name | Richard |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Berlin Township |
| 1935 Residence (County) | Roger Mills |
| Additional Details | |
| Occupation | Farm laborer |
| Industry | Farm |
| Class of Worker | W |
| Hours Worked | 52 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
| Occupation | Farm Laborer |
| Township / Ward | Berlin Township |
| Est. Birth Year | ~1920 |
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 Richard | Age | Birth yr |
|---|---|---|---|---|
| Ella Campbell | Spouse | — | 54 | ~1886 |
| Marvin Campbell | Son | — | 17 | ~1923 |
| Richard Campbell | Son | — | 20 | ~1920 |
Census Appearances
1920
Roger Mills, …
Son, age
Roger Mills, Oklahoma · implied b. ~1920 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Richard D |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Kansas |
| Occupation | none |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1930
Roger Mills, …
Son, age 10
Roger Mills, Oklahoma · implied b. ~1920 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Richard A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Kansas |
| Can Read/Write | Yes |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1940
Roger-Mills-County, Oklahoma
Son, age 20
Roger-Mills-County, Oklahoma · implied b. ~1920 — 3 household members
| Surname | Campbell |
| Given Name | Richard |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Berlin Township |
| 1935 Residence (County) | Roger Mills |
| Occupation | Farm laborer |
| Industry | Farm |
| Class of Worker | W |
| Hours Worked | 52 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| 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 Richard Campbell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Archie Campbell (~0.92 confidence) and father Mike Campbell (~0.92 confidence) and mother Ella Campbell (~0.92 confidence) and mother Stella Campbell (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Archie Campbell
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Mike Campbell
b. ~1885
Source father
● Household
· direct · ~0.92
Mother
Ella Campbell
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Stella Campbell
b. ~1886
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Richard Campbell
Son · 1940 · age 20 · b. ~1920 · Oklahoma
★ You are viewing this record
Sibling
Marvin Campbell
Sibling · 1940 · age 17
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 — Roger-Mills-County, Oklahoma
Open full size
1940 US Federal Census — Roger-Mills-County, Oklahoma
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03329-00552)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ella E. Campbell | 54 | wife | — | Kansas |
| 2 | Richard Campbell THIS PERSON | 20 | son | Farm Laborer | Oklahoma |
| 3 | Marvin B. Campbell | 17 | son | Farm Laborer | Oklahoma |
| 4 | Lundon L. Campbell | 28 | Head | Farmer | Oklahoma |
| 5 | Nellie M. Campbell | 29 | wife | — | Oklahoma |
| 6 | Louis Russell | 38 | Head | Farmer | Oklahoma |
| 7 | Lois Russell | 18 | wife | — | Oklahoma |
| 8 | Barbie Russell | 76 | mother | — | Germany |
| 9 | Rudolph A. Lawrence | 31 | Head | Farmer | Oklahoma |
| 10 | Louis Lawrence | 26 | wife | — | Oklahoma |
| 11 | Walter A. Hanni | 38 | Head | Farmer | Kansas |
| 12 | Stella Hanni | 36 | wife | — | Oklahoma |
| 13 | Marilyn M. Hanni | 11 | Daughter | — | Oklahoma |
| 14 | W. A. Hanni | 9 | son | — | Oklahoma |
| 15 | Clydie L. Hanni | 7 | Daughter | — | Oklahoma |
| 16 | George H. Hall | 52 | Head | Farmer | Texas |
| 17 | Johnnie M. Hall | 37 | wife | — | Tennessee |
| 18 | Marvin H. Hall | 21 | son | Office Boy | Oklahoma |
| 19 | Minnie Mae Hall | 17 | Daughter | — | Oklahoma |
| 20 | Archie R. Hall | 14 | son | — | Oklahoma |
| 21 | Johnnie M. Hall | 8 | Daughter | — | Oklahoma |
| 22 | John S. Dorsey | 36 | Head | Farmer | Oklahoma |
| 23 | Mae E. Dorsey | 37 | wife | — | Oklahoma |
| 24 | T. C. Dorsey | 15 | son | Farm Laborer | Oklahoma |
| 25 | Millie L. Dorsey | 12 | Daughter | — | Oklahoma |
| 26 | Betty A. Dorsey | 3 | Daughter | — | Oklahoma |
| 27 | Roy A. Young | 29 | Head | Farmer | Oklahoma |
| 28 | Opal Young | 25 | wife | — | Oklahoma |
| 29 | Doris L. Young | 6 | Daughter | — | Oklahoma |
| 30 | Earvin Young | 3 | son | — | Oklahoma |
| 31 | Myrle Young | 2 | Daughter | — | Oklahoma |
| 32 | Paul Elkme | 70 | Head | Farmer | Illinois |
| 33 | Marie K. Elkme | 71 | wife | — | Germany |
| 34 | Delbert R. Elkme | 9 | son | — | Nebraska |
| 35 | Frank L. Schwer | 47 | Head | Farmer | Missouri |
| 36 | Ruth Schwer | 48 | wife | — | Missouri |
| 37 | Raymond B. Schwer | 16 | son | Farm Laborer | Oklahoma |
| 38 | Nancy L. Basswood | 84 | Mother in law | — | Missouri |
| 39 | Jesse M. Dunlap | 45 | Head | Farmer | Oklahoma |
| 40 | Alta L. Dunlap | 42 | wife | — | Texas |
Pedigree Summary
Richard + 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)