RE
Robert Ellis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this Robert Ellis across the 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed), with identified parents Chester & Betty — first a son (b.~1917), then head of a 4-person household.
Age 23
b. ~1917
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Ellis |
| Given Name | Robert W. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Occupation | machinist |
| Industry | chain factory |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 230 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Machinist |
| Township / Ward | Indianapolis |
| Est. Birth Year | ~1917 |
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 |
|---|---|---|---|---|
| Chester Ellis | Head | — | 45 | ~1895 |
| Robert Ellis | Son | — | 23 | ~1917 |
| Markham Ellis | Son | — | 20 | ~1920 |
| Betty Ellis | Spouse | — | 45 | ~1895 |
Census Appearances
1920
Marion, Indiana
Son, age 2
Marion, Indiana · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ellis |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Marion, Indiana
Son, age 12
Marion, Indiana · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ellis |
| Given Name | Robert N |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Marion-County, Indiana
Son, age 23
Marion-County, Indiana · implied b. ~1917 — 4 household members
| Surname | Ellis |
| Given Name | Robert W. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Occupation | machinist |
| Industry | chain factory |
| Class of Worker | PW |
| Hours Worked | 36 |
| Income (1939) | 230 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| 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 Ellis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Chester Ellis (~0.92 confidence) and mother Betty Ellis (~0.92 confidence) and mother Vinnie Ellis (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Chester Ellis
b. ~1894
Source father
● Household
· direct · ~0.92
Mother
Betty Ellis
b. ~1895
Source mother
● Household
· direct · ~0.92
Mother
Vinnie Ellis
b. ~1898
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Ellis
Son · 1940 · age 23 · b. ~1917 · Indiana
★ You are viewing this record
Sibling
Markham Ellis
Sibling · 1940 · age 20
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 — 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-t0627-01122-00722)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frances Rish | 17 | daughter | — | Indiana |
| 2 | Clarence Rizk | 33 | head | Dealer | Syria |
| 3 | Minerva Rizk | 24 | wife | — | Ohio |
| 4 | Ronald Rizk | 4 | son | — | Indiana |
| 5 | Jerry Rizk | 1 | son | — | Indiana |
| 6 | Larry Rizk | 1 | son | — | Indiana |
| 7 | Truvella Phillips | 38 | head | Manager | Indiana |
| 8 | Lillian Phillips | 40 | wife | Maid | Indiana |
| 9 | Lewis Rizk | 26 | head | General Partner | Indiana |
| 10 | Mamie Rizk | 24 | wife | — | Indiana |
| 11 | Janice Rizk | 2 | daughter | — | Indiana |
| 12 | Laura B. Schaefer | 57 | head | Teacher | Indiana |
| 13 | Alfred C. Longerich | 26 | nephew | Salesman | Indiana |
| 14 | Virginia Longerich | 23 | niece | Office Clerk | Indiana |
| 15 | Kenneth Schultz | 25 | head | Routeman | Indiana |
| 16 | Luella Schultz | 25 | wife | — | Indiana |
| 17 | Edward Tierel | 34 | head | Salesman | Illinois |
| 18 | Louise Tierel | 39 | wife | — | Indiana |
| 19 | James Wills | 42 | head | Fireman | Tennessee |
| 20 | Mabel Wills | 46 | wife | — | Indiana |
| 21 | Robert Rhodes | 48 | head | Engineer | Indiana |
| 22 | Florence Rhodes | 37 | wife | — | Indiana |
| 23 | Hampton Rhodes | 18 | son | New Worker | Indiana |
| 24 | Dorothy Rhodes | 16 | daughter | New Worker | Indiana |
| 25 | Beverly Rhodes | 5 | daughter | — | Indiana |
| 26 | Pearl Pierpont | 50 | head | Saleslady | Indiana |
| 27 | Ruth Pierpont | 22 | daughter | — | Indiana |
| 28 | Jo Anne Pierpont | 17 | daughter | Stenographer | Indiana |
| 29 | Herbert Janneck | 43 | head | Weigh Master | Indiana |
| 30 | Elsie Janneck | 41 | wife | — | Indiana |
| 31 | Arthur Janneck | 16 | son | — | Indiana |
| 32 | Frank Janneck | 12 | son | — | Indiana |
| 33 | Elizabeth Janneck | 7 | daughter | — | Indiana |
| 34 | Guido Fossati | 46 | head | Fireman | Indiana |
| 35 | Mary Fossati | 40 | wife | Operator | Indiana |
| 36 | Edna Cook | 20 | daughter | Stenographer | Indiana |
| 37 | Chester Ellis | 45 | head | Chiropractor | Indiana |
| 38 | Betty M. Ellis | 45 | wife | — | Indiana |
| 39 | Robert W. Ellis THIS PERSON | 23 | son | Machinist | Indiana |
| 40 | Markham Ellis | 20 | son | New Worker | Indiana |
Pedigree Summary
Robert + 1 sibling
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)