DC
Donald Campbell — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Clair-County, Michigan
Our Model Tree links this Donald Campbell across the 1920, 1930 and 1940 US Censuses in St.-Clair-County, Michigan (XGBoost, ~Confirmed), with identified parents Genevieve & James — first a son (b.~1916), then head of a 6-person household.
Age 24
b. ~1916
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Clair-County, Michigan |
| Surname | Campbell |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Sanilac |
| Additional Details | |
| Occupation | Salesman |
| Industry | Auto Industry |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | H 4 |
| 1935 Residence | Michigan |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Salesman |
| Township / Ward | Clyde Twp |
| Est. Birth Year | ~1916 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Donald | Age | Birth yr |
|---|---|---|---|---|
| Donald Campbell | Son | — | 24 | ~1916 |
| James Campbell | Head | — | 59 | ~1881 |
| Florence Campbell | Son | — | 20 | ~1920 |
| Genevieve Campbell | Daughter | — | 18 | ~1922 |
| Glen Hawk | Other | — | 20 | ~1920 |
| Genevieve Campbell | Spouse | — | 59 | ~1881 |
Census Appearances
1920
St Clair, …
Son, age 3
St Clair, Michigan · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Occupation | none |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
St Clair, …
Son, age 13
St Clair, Michigan · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Donald E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Occupation | salesman |
| Industry | Retail Grocery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
St.-Clair-County, Michigan
Son, age 24
St.-Clair-County, Michigan · implied b. ~1916 — 6 household members
| Surname | Campbell |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Sanilac |
| Occupation | Salesman |
| Industry | Auto Industry |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | H 4 |
| 1935 Residence | Michigan |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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: mother Genevieve Campbell (~0.92 confidence) and father James Campbell (~0.92 confidence) and father Silas Campbell (~0.92 confidence) and father Silas Campbell (~0.92 confidence) and mother Margaret Campbell (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Genevieve Campbell
b. ~1881
Source mother
● Household
· direct · ~0.92
Father
James Campbell
b. ~1881
Source father
● Household
· direct · ~0.92
Father
Silas Campbell
b. ~1893
Source father
● Household
· direct · ~0.92
Father
Silas Campbell
b. ~1894
Source father
● Household
· direct · ~0.92
Mother
Margaret Campbell
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Donald Campbell
Son · 1940 · age 24 · b. ~1916 · Michigan
★ You are viewing this record
Sibling
Florence Campbell
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Genevieve Campbell
Sibling · 1940 · age 18
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 — St.-Clair-County, Michigan
Open full size
1940 US Federal Census — St.-Clair-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01815-00260)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Darius Lyndon | 33 | Head | Tool Machinist | Michigan |
| 2 | Pearl Lyndon | 30 | Wife | Inspector | Michigan |
| 3 | Patricia Lyndon | 11 | Daughter | — | Michigan |
| 4 | Jean Lyndon | 10 | Daughter | — | Michigan |
| 5 | Virginia Lyndon | 4 | Daughter | — | Michigan |
| 6 | James Davies | 63 | Head | General Maintenance | New York |
| 7 | Elwell Van Camp | 32 | Head | Truck Driver | Michigan |
| 8 | Elsie Van Camp | 30 | Wife | — | Illinois |
| 9 | Gerald Van Camp | 4 | Son | — | Michigan |
| 10 | William Vancamp | 58 | Head | — | Michigan |
| 11 | Frederick Vancamp | 21 | Son | Small Parts Grinder | Michigan |
| 12 | Katherine Simpson | 86 | Mother | — | Michigan |
| 13 | Charles Adams | 73 | Head | Farmer | Michigan |
| 14 | Jan Adams | 61 | Wife | — | Canada |
| 15 | Clyde Cross | 42 | Head | Truck Driver | Maine |
| 16 | Christie Cross | 43 | Wife | — | Maine |
| 17 | David Cross | 15 | Son | — | Maine |
| 18 | Sidney Cross | 11 | Son | — | Michigan |
| 19 | Harry Brown | 55 | Head | Farmer | Michigan |
| 20 | Edith Brown | 52 | Wife | — | Michigan |
| 21 | Noah Walker | 45 | Head | Farmer | Michigan |
| 22 | Marie Walker | 45 | Wife | — | Wisconsin |
| 23 | Carol Walker | 19 | Daughter | — | Michigan |
| 24 | Robert Walker | 17 | Son | — | Michigan |
| 25 | Donald Walker | 15 | Son | — | Michigan |
| 26 | Kenneth Walker | 13 | Son | — | Michigan |
| 27 | Thelma Walker | 12 | Daughter | — | Michigan |
| 28 | Eugene Walker | 10 | Son | — | Michigan |
| 29 | James Campbell | 59 | Head | Farmer | Michigan |
| 30 | Genevieve Campbell | 59 | Wife | — | Michigan |
| 31 | Donald Campbell THIS PERSON | 24 | Son | Salesman | Michigan |
| 32 | Florence Campbell | 20 | Son | — | Michigan |
| 33 | Genevieve Campbell | 18 | Daughter | Private Secretary | Michigan |
| 34 | Glen Hawk | 20 | Hired man | Hired Man | Illinois |
| 35 | Charles Confer | 86 | Head | Farmer | Michigan |
| 36 | Cora Confer | 63 | Wife | — | Michigan |
| 37 | Paul Longton | 40 | Step son | Farmer | Michigan |
| 38 | Lloyd Longton | 37 | Step son | Farmer | Michigan |
| 39 | Stuart Moore | 34 | Head | Farmer | Michigan |
| 40 | Marion Moore | 33 | Wife | — | Michigan |
Related Census Records
Pedigree Summary
Donald + 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)