WC
Walter Campbell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this Walter Campbell across the 1910, 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed), with identified parents Charles & Alma — first a head (b.~1902), then head of a 4-person household.
Age 38
b. ~1902
Male
Head
Born: Indiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Campbell |
| Given Name | Walter |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Occupation | Driver |
| Industry | Milk Retail |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1300 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Driver |
| Township / Ward | Indianapolis |
| Est. Birth Year | ~1902 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Walter | Age | Birth yr |
|---|---|---|---|---|
| Barbara Campbell | Daughter | — | 9 | ~1931 |
| Walter Campbell | Head | — | 38 | ~1902 |
| Jeanne Campbell | Daughter | — | 12 | ~1928 |
| Lorena Campbell | Spouse | — | 34 | ~1906 |
Census Appearances
1910
Marion, Indiana
Son, age 10
Marion, Indiana · implied b. ~1900 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Walter |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1920
Marion, Indiana
Son, age 18
Marion, Indiana · implied b. ~1902 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Walter H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | Salesman |
| Industry | Department Store |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Marion, Indiana
Head, age 28
Marion, Indiana · implied b. ~1902 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Walter |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 24 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | Painter |
| Industry | Contractor |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 19.00 |
| Radio Set | R |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Marion-County, Indiana
Head, age 38
Marion-County, Indiana · implied b. ~1902 — 4 household members
| Surname | Campbell |
| Given Name | Walter |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Occupation | Driver |
| Industry | Milk Retail |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1300 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Walter Campbell across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Campbell (~0.92 confidence) and mother Alma Campbell (~0.92 confidence) and mother Ida Campbell (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Campbell
b. ~1869
Source father
● Household
· direct · ~0.92
Mother
Alma Campbell
b. ~1881
Source mother
● Household
· direct · ~0.92
Mother
Ida Campbell
b. ~1866
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Walter Campbell
Head · 1940 · age 38 · b. ~1902 · Indiana
★ 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 — Marion-County, Indiana
Open full size
1940 US Federal Census — Marion-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01122-00680)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jessie Goben | 60 | Wife | — | Germany |
| 2 | Bertha Goben | 37 | Daughter | Seamstress | Indiana |
| 3 | Kenneth Cox | 31 | Head | Truck Driver | Ohio |
| 4 | Georgia Cox | 31 | Wife | — | Indiana |
| 5 | Edward Cox | 7 | Son | — | Indiana |
| 6 | Myrtle Surber | 19 | Step daughter | Salesgirl | Indiana |
| 7 | Edward P. Marshall | 54 | Head | Custodian | Indiana |
| 8 | Audie P. Marshall | 51 | Wife | — | Indiana |
| 9 | Son Irvin J. | None | M | Hotel | — |
| 10 | Arville J. Marshall | 22 | Son | Machinist | Indiana |
| 11 | Charles Creamer | 76 | Head | Stationary Engineer | Indiana |
| 12 | Martha A. Creamer | 60 | Wife | — | Wisconsin |
| 13 | Edward Harrison Colvin | 30 | Lodger | Poultry Dresser | Kentucky |
| 14 | Mabel Creamer | 60 | Sister | Clerk | Indiana |
| 15 | Jacob W. Monroe | 54 | Head | Clerk | Kentucky |
| 16 | Edna Monroe | 50 | Wife | — | Indiana |
| 17 | Harry Monroe | 22 | Son | Laborer | Indiana |
| 18 | Charles N. Briggs | 37 | Head | Attendant | Kentucky |
| 19 | Elva O. Briggs | 32 | Wife | — | Indiana |
| 20 | Dora Jane Noblitt | 68 | Mother in law | — | Indiana |
| 21 | Walter Campbell THIS PERSON | 38 | Head | Driver | Indiana |
| 22 | Lorena O. Campbell | 34 | Wife | — | Indiana |
| 23 | Jeanne Campbell | 12 | Daughter | — | Indiana |
| 24 | Barbara Campbell | 9 | Daughter | — | Indiana |
| 25 | Joseph H. Butler | 52 | Head | Brakeman | Indiana |
| 26 | Flora May Butler | 52 | Wife | — | Indiana |
| 27 | Leslie M. Barron | 46 | Head | Clerk | Indiana |
| 28 | Hazel O. Barron | 47 | Wife | — | Indiana |
| 29 | Mary Smock | 68 | Mother | — | Indiana |
| 30 | John W. Bailey | 62 | Head | Upfitter | Indiana |
| 31 | Myrtle Bailey | 58 | Wife | — | Indiana |
| 32 | Ruth E. Smith | 27 | Daughter | Cutter | Indiana |
| 33 | Wesley Smith | 18 | Grandson | — | Indiana |
| 34 | Mina Eikenberry | 72 | Head | — | Indiana |
| 35 | Charles F. Alford | 37 | Head | Foreman | Indiana |
| 36 | Thomas E. Alford | 70 | Father | — | New York |
| 37 | Mary M. Alford | 61 | Mother | — | Indiana |
| 38 | Ione Gordon | 20 | Roomer | New Worker | Illinois |
| 39 | Beaulah Gordon | 0 | Roomer | — | Indiana |
| 40 | Berniece Dietz | 38 | Head | — | Indiana |
Pedigree Summary
Walter
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)