RS
Ralph Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this Ralph Smith across the 1910, 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed), with identified parents Marvel & Marvel — first a head (b.~1905), then head of a 5-person household.
Age 35
b. ~1905
Male
Head
Born: Indiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Smith |
| Given Name | Ralph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Decatur Twp |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Farmer |
| Township / Ward | Decatur Twp |
| Est. Birth Year | ~1905 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ralph | Age | Birth yr |
|---|---|---|---|---|
| Ralph Smith | Head | — | 35 | ~1905 |
| George Hue | Other | — | 37 | ~1903 |
| Jessie Hicks | Other | — | 70 | ~1870 |
| Donald Smith | Son | — | 4 | ~1936 |
| Lola Smith | Spouse | — | 31 | ~1909 |
Census Appearances
1910
Marion, Indiana
Son, age 4
Marion, Indiana · implied b. ~1906 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Ralph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Iowa |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1920
Marion, Indiana
Son, age 15
Marion, Indiana · implied b. ~1905 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Ralph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Marion, Indiana
Son, age 26
Marion, Indiana · implied b. ~1904 — 14 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Ralph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 23 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Illinois |
| Occupation | Laborer |
| Industry | Grain Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Marion-County, Indiana
Head, age 35
Marion-County, Indiana · implied b. ~1905 — 5 household members
| Surname | Smith |
| Given Name | Ralph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Decatur Twp |
| 1935 Residence (County) | Marion |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 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 Ralph Smith across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Marvel Smith (~0.92 confidence) and father Marvel Smith (~0.92 confidence) and mother Jennie Smith (~0.92 confidence) and father John Smith (~0.92 confidence) and mother Maud Smith (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Marvel Smith
b. ~1865
Source father
● Household
· direct · ~0.92
Father
Marvel Smith
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Jennie Smith
b. ~1876
Source mother
● Household
· direct · ~0.92
Father
John Smith
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Maud Smith
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ralph Smith
Head · 1940 · age 35 · b. ~1905 · 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-t0627-01075-00305)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lester Larson | 68 | Head | Farmer | Indiana |
| 2 | Ella B. Larson | 53 | Wife | Teacher | Indiana |
| 3 | E. L. French | 54 | Head | Farmer | Indiana |
| 4 | Lillie May French | 42 | Wife | — | Indiana |
| 5 | Fred French | 15 | Son | — | Indiana |
| 6 | Ralph Smith THIS PERSON | 35 | Head | Farmer | Indiana |
| 7 | Lola Smith | 31 | Wife | — | Indiana |
| 8 | Donald E. Smith | 4 | Son | — | Indiana |
| 9 | Jessie Hicks | 70 | Lodger | Nurse | Indiana |
| 10 | George Hue | 37 | Lodger | Laborer | Kentucky |
| 11 | Paul Hale | 28 | Head | Trucker | Indiana |
| 12 | Clarice Hale | 20 | Wife | — | Indiana |
| 13 | Norma Jean Hale | 5 | Daughter | — | Indiana |
| 14 | Kenneth Hale | 3 | Son | — | Indiana |
| 15 | Sally Hale | 2 | Daughter | — | Indiana |
| 16 | Tommy Hale | 1 | Son | — | Indiana |
| 17 | Cyrille John Stellie | 48 | Head | Clerk | Indiana |
| 18 | Rosie Stellie | 43 | Wife | — | Indiana |
| 19 | Cyrille John Stellie | 13 | Son | — | Indiana |
| 20 | Lewis Francis Stellie | 15 | Son | — | Indiana |
| 21 | Howard Stellie | 14 | Son | — | Indiana |
| 22 | Leland S. Mills | 54 | Head | Teacher | Indiana |
| 23 | Lucretia Mills | 49 | Wife | — | Indiana |
| 24 | David S. Mills | 23 | Son | Carpentering | Indiana |
| 25 | Lowell E. Mills | 22 | Son | Carpentering | Indiana |
| 26 | Robert W. Mills | 20 | Son | Carpentering | Indiana |
| 27 | John W. Mills | 14 | Son | — | Indiana |
| 28 | Emery Cooper | 47 | Head | Laborer | Indiana |
| 29 | Alta Cooper | 46 | Wife | — | Indiana |
| 30 | Velma Cooper | 17 | Daughter | Maid | Indiana |
| 31 | Glen Cooper | 14 | Son | — | Indiana |
| 32 | Elizabeth Bell Cooper | 12 | Daughter | — | Indiana |
| 33 | Chester Cooper | 9 | Son | — | Indiana |
| 34 | Marvin Edward Cooper | 5 | Son | — | Indiana |
| 35 | Norma Jean Cooper | 3 | Daughter | — | Indiana |
| 36 | Marsha Furnas | 55 | Head | Librarian | Indiana |
| 37 | Barrett D. C. Furnas | 72 | Uncle | — | Indiana |
| 38 | Opal Hawkins | 26 | Maid | Housekeeper | Indiana |
| 39 | David Squires | 47 | Head | Farm Manager | Indiana |
| 40 | Bertha Squires | 38 | Wife | — | Indiana |
Pedigree Summary
Ralph
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)