DC
Donald Campbell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cass-County, Iowa
Our Model Tree links this Donald Campbell across the 1920, 1930 and 1940 US Censuses in Cass-County, Iowa (XGBoost, ~Confirmed), with identified parents Robert & Robert — first a head (b.~1914), then head of a 3-person household.
Age 26
b. ~1914
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cass-County, Iowa |
| Surname | Campbell |
| Given Name | Donald R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Atlantic City |
| 1935 Residence (County) | Cass |
| Additional Details | |
| Occupation | Truck Driver |
| Industry | Beer |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 987 |
| Highest Grade | Hs-4 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Truck Driver |
| Township / Ward | Atlantic City |
| Est. Birth Year | ~1914 |
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 Donald | Age | Birth yr |
|---|---|---|---|---|
| Donna Campbell | Daughter | — | 4 | ~1936 |
| Dorothy Campbell | Spouse | — | 32 | ~1908 |
| Donald Campbell | Head | — | 26 | ~1914 |
Census Appearances
1920
Cass, Iowa
Son, age 6
Cass, Iowa · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Donald R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Cass, Iowa
Son, age 16
Cass, Iowa · implied b. ~1914 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Donald R |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Cass-County, Iowa
Head, age 26
Cass-County, Iowa · implied b. ~1914 — 3 household members
| Surname | Campbell |
| Given Name | Donald R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Atlantic City |
| 1935 Residence (County) | Cass |
| Occupation | Truck Driver |
| Industry | Beer |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 987 |
| Highest Grade | Hs-4 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Donald Campbell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Robert Campbell (~0.92 confidence) and father Robert Campbell (~0.92 confidence) and mother Jessie Campbell (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Robert Campbell
b. ~1889
Source father
● Household
· direct · ~0.92
Father
Robert Campbell
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Jessie Campbell
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Donald Campbell
Head · 1940 · age 26 · b. ~1914 · Iowa
★ 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 — Cass-County, Iowa
Open full size
1940 US Federal Census — Cass-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01145-00162)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Charlotte L. Olson | 59 | Head | Proprietor | Nebraska |
| 42 | Alvina Q. Agnew | 51 | Head | Seamstress | Iowa |
| 43 | Jeannette Agnew | 24 | Daughter | Stenographer | Iowa |
| 44 | Clarabel Agnew | 22 | Daughter | Stenographer | Iowa |
| 45 | Gertrude Agnew | 17 | Daughter | — | Iowa |
| 46 | Ida C. Lacey | 49 | Head | Seamstress | Iowa |
| 47 | Clifton J. Lacey | 22 | Son | Mechanic | Iowa |
| 48 | Verdie J. Lacey | 14 | Daughter | — | Iowa |
| 49 | Ivan E. Lacey | 14 | Son | Paper Carrier | Iowa |
| 50 | Norman G. Lacey | 11 | Son | — | Iowa |
| 51 | Clarence Scherdin | 56 | Head | Laborer | Iowa |
| 52 | Amelia C. Scherdin | 55 | Wife | Cleaning | Iowa |
| 53 | Raymond Scherdin | 23 | Son | Trucker | Iowa |
| 54 | John Hoffman | 53 | Head | Owner | Iowa |
| 55 | Minnie A. Hoffman | 49 | Wife | — | Iowa |
| 56 | Faye Hoffman | 27 | Daughter | Servant | Iowa |
| 57 | Charles A. Finch | 75 | Head | — | Indiana |
| 58 | Paul W. Vale | 33 | Head | Buttermaker | Iowa |
| 59 | Evelyn Vale | 24 | Wife | — | Iowa |
| 60 | Clyde E. Moore | 24 | Head | Sales Clerk | Iowa |
| 61 | Laverne A. Moore | 20 | Wife | — | Iowa |
| 62 | Donald Matthews | 24 | Head | Truck Driver | Iowa |
| 63 | Lorraine Matthews | 24 | Wife | — | Iowa |
| 64 | Shirley Matthews | 3 | Daughter | — | Iowa |
| 65 | John N. Morgan | 76 | Uncle | — | Illinois |
| 66 | Donald R. Campbell THIS PERSON | 26 | Head | Truck Driver | Iowa |
| 67 | Dorothy E. Campbell | 32 | Wife | Truck Driver | Iowa |
| 68 | Donna J. Campbell | 4 | Daughter | — | Iowa |
| 69 | Lena Taylor | 71 | Head | — | Iowa |
| 70 | George Taylor | 35 | Son | Mechanic | Iowa |
| 71 | Clyde Hiatt | 56 | Head | Brick Mason | Iowa |
| 72 | Bessie Hiatt | 55 | Wife | — | Iowa |
| 73 | Louie Marsen | 32 | Head | Laborer | Iowa |
| 74 | Barbara Marsen | 31 | Wife | Cleaner | Iowa |
| 75 | Bert Calloway | 55 | Head | — | Iowa |
| 76 | Leonard Anderson | 24 | Head | Trucker | Iowa |
| 77 | Neitha Anderson | 22 | Wife | — | Iowa |
| 78 | Nadene M. Anderson | 2 | Daughter | — | Iowa |
| 79 | Herbert L. Jones | 27 | Head | Lens Grinder | Iowa |
| 80 | Ella V. Jones | 24 | Wife | — | Iowa |
Pedigree Summary
Donald
Gen 1 · 3 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)