RB
Robert Ball — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this Robert Ball across the 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed), with identified parents Albert & Alfred — first a son (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Male
Son
Born: Indiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Ball |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Occupation | Traveling Salesman |
| Industry | Medical Supplies |
| Class of Worker | PW |
| Hours Worked | 4 |
| Income (1939) | 1000 |
| Highest Grade | H-4 |
| 1935 Residence | Same Place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Traveling Salesman |
| Township / Ward | Indianapolis |
| Est. Birth Year | ~1918 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Ball | Son | — | 22 | ~1918 |
| Alfred Ball | Head | — | 48 | ~1892 |
| Mina Ball | Spouse | — | 44 | ~1896 |
| Helena Ball | Other | — | 20 | ~1920 |
Census Appearances
1920
Marion, Indiana
Son, age 2
Marion, Indiana · implied b. ~1918 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ball |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Indiana |
| Occupation | none |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Marion, Indiana
Son, age 12
Marion, Indiana · implied b. ~1918 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ball |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Marion-County, Indiana
Son, age 22
Marion-County, Indiana · implied b. ~1918 — 4 household members
| Surname | Ball |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Occupation | Traveling Salesman |
| Industry | Medical Supplies |
| Class of Worker | PW |
| Hours Worked | 4 |
| Income (1939) | 1000 |
| Highest Grade | H-4 |
| 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 Robert Ball across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Albert Ball (~0.92 confidence) and father Alfred Ball (~0.92 confidence) and mother Mina Ball (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Albert Ball
b. ~1892
Source father
● Household
· direct · ~0.92
Father
Alfred Ball
b. ~1893
Source father
● Household
· direct · ~0.92
Mother
Mina Ball
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Ball
Son · 1940 · age 22 · b. ~1918 · 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-t0627-01129-00736)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ethel Steinmetz | 50 | Head | Seamstress | Indiana |
| 2 | Agnes Mcbee | 43 | Head | Assembler | Indiana |
| 3 | Daniel Mcbee | 21 | Son | Clerk | Indiana |
| 4 | Iris Mcbee | 16 | Daughter | — | Indiana |
| 5 | Donald Mcbee | 10 | Daughter | — | Indiana |
| 6 | Alfred Ball | 48 | Head | Proprietor | Kentucky |
| 7 | Mina Ball | 44 | Wife | Asst Proprietor | Indiana |
| 8 | Robert Ball THIS PERSON | 22 | Son | Traveling Salesman | Indiana |
| 9 | Helena Ball | 20 | Daughter-in-law | Clerk Stenographer | Indiana |
| 10 | Arthur Pritchard | 41 | Head | Proprietor | Indiana |
| 11 | Alma Pritchard | 42 | Wife | — | Indiana |
| 12 | Robert Pritchard | 15 | Son | — | Indiana |
| 13 | Patricia Pritchard | 14 | Daughter | — | Indiana |
| 14 | Dorothy Pritchard | 13 | Daughter | — | Indiana |
| 15 | Jack Pritchard | 2 | Son | — | Indiana |
| 16 | Howard Danforth | 34 | Head | Truck Driver | Maryland |
| 17 | Francis Danforth | 35 | Wife | — | Indiana |
| 18 | Donald Danforth | 8 | Son | — | Indiana |
| 19 | Edwin Danforth | 5 | Son | — | Indiana |
| 20 | Edward Hornbake | 31 | Head | Carpenter | Indiana |
| 21 | Wilma Hornbake | 28 | Wife | — | Illinois |
| 22 | Donna Hornbake | 8 | Daughter | — | Indiana |
| 23 | Frank Marschke | 64 | Head | Proprietor | Germany |
| 24 | Ernestine Marschke | 65 | Wife | Asst Proprietor | Germany |
| 25 | Myra Words | 62 | Head | — | Canada |
| 26 | Wm C Buchanan | 58 | Lodger | Private Detective | Indiana |
| 27 | Floyd Oberting | 29 | Head | Heat-Treat | Indiana |
| 28 | Bernice Oberting | 24 | Wife | — | Indiana |
| 29 | Gloria Oberting | 5 | Daughter | — | Indiana |
| 30 | Bill Little | 26 | Head | Bricklayer | Tennessee |
| 31 | Geneva Little | 23 | Wife | — | Indiana |
| 32 | La Vada Little | 4 | Daughter | — | Indiana |
| 33 | Davis Milner | 34 | Head | Bookkeeper | Indiana |
| 34 | Hazel Milner | 34 | Wife | — | Indiana |
| 35 | Wanda Milner | 13 | Daughter | — | Indiana |
| 36 | Roland Plunkitt | 47 | Head | Brakeman | Indiana |
| 37 | Dorothy Plunkitt | 42 | Wife | Seamstress | Illinois |
| 38 | Virginia Plunkitt | 22 | Daughter | Comp Operator | Illinois |
| 39 | William Arnold | 35 | Head | Barber | Indiana |
| 40 | Letha Arnold | 29 | Wife | — | Indiana |
Pedigree Summary
Robert
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)