RC
Richard Campbell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lincoln-County, Washington
Our Model Tree links this Richard Campbell across the 1920, 1930 and 1940 US Censuses in Lincoln-County, Washington (XGBoost, ~Confirmed), with identified parents Lloyd & W — first a son (b.~1915), then head of a 2-person household.
Age 25
b. ~1915
Male
Son
Born: Washington
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lincoln-County, Washington |
| Surname | Campbell |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Davenport |
| 1935 Residence (County) | Lincoln |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | C-3 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
| Township / Ward | Davenport |
| 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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Richard | Age | Birth yr |
|---|---|---|---|---|
| Richard Campbell | Son | — | 25 | ~1915 |
| Ruby Campbell | Head | — | 51 | ~1889 |
Census Appearances
1920
Lincoln, Washington
Son, age 5
Lincoln, Washington · implied b. ~1915 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Richard B |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Minnesota |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1930
Lincoln, Washington
Son, age 15
Lincoln, Washington · implied b. ~1915 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Richard B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Washington |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Minnesota |
| Can Read/Write | Yes |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
1940
Lincoln-County, Washington
Son, age 25
Lincoln-County, Washington · implied b. ~1915 — 2 household members
| Surname | Campbell |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Washington |
| 1935 Residence (City) | Davenport |
| 1935 Residence (County) | Lincoln |
| Income (1939) | 0 |
| Highest Grade | C-3 |
| 1935 Residence | Same place |
| Birth State | Washington |
| Birth Country | United States |
| Birthplace (normalized) | washington |
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 Lloyd Campbell (~0.92 confidence) and father W Campbell (~0.92 confidence) and mother Ruby Campbell (~0.92 confidence) and mother Ruby Campbell (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Lloyd Campbell
b. ~1880
Source father
● Household
· direct · ~0.92
Father
W Campbell
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Ruby Campbell
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Ruby Campbell
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Richard Campbell
Son · 1940 · age 25 · b. ~1915 · Washington
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Lincoln-County, Washington
Open full size
1940 US Federal Census — Lincoln-County, Washington
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04352-00080)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Grace Dunn | 31 | Sister-in-law | Deputy | Minnesota |
| 42 | Addie Keon | 66 | Mother-in-law | — | Minnesota |
| 43 | John S. R. Hardman | 54 | Head | Janitor | Pennsylvania |
| 44 | Edna Beall | 55 | Head | Sales Clerk | South Dakota |
| 45 | Marvin Beall | 20 | Son | Driver | Washington |
| 46 | Clarence Harvey | 52 | Head | Civil Engineer | Ohio |
| 47 | Claude Mansfield | 49 | Head | Laborer | Washington |
| 48 | Gladys Mansfield | 42 | Wife | Bookkeeper | Washington |
| 49 | Charles Sanderson | 84 | Head | Bookkeeper | Massachusetts |
| 50 | Cortez Brown | 72 | Head | Bailiff & Janitor | Missouri |
| 51 | J. Perry Van Meter | 68 | Head | Assessor | Ohio |
| 52 | Anna Van Meter | 48 | Wife | Clerk | Washington |
| 53 | Mary Van Meter | 19 | Daughter | — | Washington |
| 54 | — | None | — | — | — |
| 55 | Ferd Von Bollen | 59 | Head | — | Germany |
| 56 | Margaret Von Bollen | 49 | Wife | — | Washington |
| 57 | Charles S. Hardwick | 44 | Head | Proprietor | Montana |
| 58 | Grace L. Hardwick | 49 | Wife | — | Kansas |
| 59 | Donna Jean Hardwick | 9 | Daughter | — | Washington |
| 60 | Betty Rose Hardwick | 8 | Daughter | — | Washington |
| 61 | Robert Howard Hardwick | 7 | Son | — | Washington |
| 62 | Charles Richard Hardwick | 5 | Son | — | Washington |
| 63 | Edward J. Hardwick | 39 | Brother | Laborer | Montana |
| 64 | Harry J. Kieland | 23 | Head | Proprietor | Oklahoma |
| 65 | Bernice Kieland | 24 | Wife | Waitress And Cook | Texas |
| 66 | Mollie Goss | 70 | Sister-mother | — | Oklahoma |
| 67 | Edward S. Anderson | 72 | Head | Carpenter | Ohio |
| 68 | May Anderson | 66 | Wife | — | Ohio |
| 69 | Lena Smith | 46 | Head | Waitress | Illinois |
| 70 | Verl Young | 26 | Daughter | Housework | Washington |
| 71 | Gerald Smith | 25 | Son | Bookkeeper | Washington |
| 72 | Edna Smith | 24 | Daughter | Waitress | Washington |
| 73 | Robert Smith | 15 | Son | — | Washington |
| 74 | Patsy Lee Young | 8 | Granddaughter | — | Washington |
| 75 | Ethel Starrett | 67 | Head | — | Illinois |
| 76 | George Mccullough | 62 | Head | Carpenter | Pennsylvania |
| 77 | Adda Mccullough | 51 | Wife | — | Missouri |
| 78 | Laura Mccullough | 18 | Daughter | — | Washington |
| 79 | Ruby N. Campbell | 51 | Head | Proprietor | Minnesota |
| 80 | Richard Campbell THIS PERSON | 25 | Son | — | Washington |
Pedigree Summary
Richard
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)