RC
Robert Campbell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Ford-County, Kansas
Our Model Tree links this Robert Campbell across the 1920, 1930 and 1940 US Censuses in Ford-County, Kansas (XGBoost, ~Confirmed), with identified parents Ralph & Ralph — first a son (b.~1906), then head of a 7-person household.
Age 34
b. ~1906
Male
Son
Born: Kansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Ford-County, Kansas |
| Surname | Campbell |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Dodge City |
| 1935 Residence (County) | Ford |
| Additional Details | |
| Occupation | Druggist |
| Industry | Drug store |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 704 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Occupation | Druggist |
| Township / Ward | Dodge 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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Charles Miner | Other | — | 23 | ~1917 |
| Earl Maxin | Other | — | 35 | ~1905 |
| Willard Graves | Other | — | 31 | ~1909 |
| Ester Gibson | Other | — | 25 | ~1915 |
| Robert Campbell | Son | — | 34 | ~1906 |
| George Campbell | Son | — | 17 | ~1923 |
| Matilda Campbell | Spouse | — | 59 | ~1881 |
Census Appearances
1920
Ford, Kansas
Son, age 14
Ford, Kansas · implied b. ~1906 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Kansas |
| Occupation | Chore Boy |
| Industry | Battery |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1930
Ford, Kansas
Son, age 24
Ford, Kansas · implied b. ~1906 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Robert W |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Kansas |
| Occupation | pharmacist |
| Industry | drugstore |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Ford-County, Kansas
Son, age 34
Ford-County, Kansas · implied b. ~1906 — 7 household members
| Surname | Campbell |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Dodge City |
| 1935 Residence (County) | Ford |
| Occupation | Druggist |
| Industry | Drug store |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 704 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 Robert Campbell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ralph Campbell (~0.92 confidence) and father Ralph Campbell (~0.92 confidence) and mother Matilda Campbell (~0.92 confidence) and mother Matilda Campbell (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ralph Campbell
b. ~1871
Source father
● Household
· direct · ~0.92
Father
Ralph Campbell
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Matilda Campbell
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Matilda Campbell
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Campbell
Son · 1940 · age 34 · b. ~1906 · Kansas
★ You are viewing this record
Sibling
George 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 — Ford-County, Kansas
Open full size
1940 US Federal Census — Ford-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01231-00790)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Matilda Campbell | 59 | Wife | — | Kansas |
| 42 | Robert Campbell THIS PERSON | 34 | Son | Druggist | Kansas |
| 43 | George Campbell | 17 | Son | Delivery Boy | Kansas |
| 44 | Charles D. Miner | 23 | Lodger | Public Accountant | Kansas |
| 45 | Willard Graves | 31 | Lodger | Salesman | Minnesota |
| 46 | Earl Maxin | 35 | Lodger | Laborer | Illinois |
| 47 | Ester Gibson | 25 | Lodger | Salesman | Kansas |
| 48 | Extra Line | None | — | — | — |
| 49 | Henry Schneider | 74 | Head | Truck Driver | Russia |
| 50 | Sarah Schneider | 77 | Wife | — | Kansas |
| 51 | Irene Schneider | 15 | Daughter | — | Kansas |
| 52 | Emma Higgins | 90 | Head | — | Ohio |
| 53 | Willard Booth | 38 | Head | Stage Person | Kansas |
| 54 | Mildred Booth | 14 | Daughter | — | Kansas |
| 55 | Glenn Main | 34 | Head | Manager | Kansas |
| 56 | Kathleen Main | 31 | Wife | — | Kansas |
| 57 | Robert Main | 4 | Son | — | Kansas |
| 58 | Carolyn Main | 2 | Daughter | — | Kansas |
| 59 | Richard Williams | 31 | Head | Pharmacist | Kansas |
| 60 | Rosella Williams | 26 | Wife | — | Kansas |
| 61 | Marian Williams | 3 | Daughter | — | Kansas |
| 62 | Roxanne Williams | 2 | Daughter | — | Kansas |
| 63 | Lois Clapper | 26 | Head | Medical Secretary | Kansas |
| 64 | Clara Schneider | 44 | Head | Teacher | Oklahoma |
| 65 | Lea Nell Schneider | 20 | Daughter | Lesson Grader | Oklahoma |
| 66 | Martha Schneider | 17 | Daughter | — | Oklahoma |
| 67 | Eldon Schneider | 22 | Son | Station Attendant | Oklahoma |
| 68 | John Lucera | 38 | Head | Manager | Oklahoma |
| 69 | Francis Lucera | 28 | Wife | — | South Dakota |
| 70 | Asher French | 24 | Head | Teacher | Colorado |
| 71 | Shirley French | 20 | Wife | — | Colorado |
| 72 | Reid Bonshot | 26 | Head | Asst. Driller | Texas |
| 73 | Jennie Bonshot | 21 | Wife | — | New Mexico |
| 74 | Jess E. Venecus | 60 | Head | Editor | Ohio |
| 75 | Gertrude Venecus | 47 | Wife | — | Kansas |
| 76 | Martha E. Venecus | 20 | Daughter | — | Kansas |
| 77 | Jess Venecus | 11 | Son | — | Kansas |
| 78 | Robert Donald | 29 | Head | Manager Care Taker | Kansas |
| 79 | Wilma Donald | 23 | Wife | Maid | Kansas |
| 80 | Clarissa Race | 60 | Head | — | Colorado |
Pedigree Summary
Robert + 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)