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John Robbins — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this John Robbins across the 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed), with identified parents Harry & Lillian — first a son (b.~1913), then head of a 7-person household.
Age 27
b. ~1913
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Robbins |
| Given Name | John W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis City |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Occupation | Musician |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Musician |
| Township / Ward | Indianapolis City |
| Est. Birth Year | ~1913 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Edith Stonebraker | Other | — | 57 | ~1883 |
| Lillian Robbins | Spouse | — | 50 | ~1890 |
| John Robbins | Son | — | 27 | ~1913 |
| Harry Robbins | Head | — | 56 | ~1884 |
| Stephen Robbins | Son | — | 16 | ~1924 |
| William Robbins | Son | — | 19 | ~1921 |
| Jeanette Robbins | Daughter | — | 24 | ~1916 |
Census Appearances
1920
Marion, Indiana
Son, age 7
Marion, Indiana · implied b. ~1913 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Robins |
| Given Name | John V |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Maryland |
| Can Read | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Marion, Indiana
Son, age 17
Marion, Indiana · implied b. ~1913 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Robbins |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Maryland |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Marion-County, Indiana
Son, age 27
Marion-County, Indiana · implied b. ~1913 — 7 household members
| Surname | Robbins |
| Given Name | John W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis City |
| 1935 Residence (County) | Marion |
| Occupation | Musician |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Indiana |
| 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 John Robbins across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Harry Robbins (~0.92 confidence) and mother Lillian Robins (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Harry Robbins
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Lillian Robins
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Robbins
Son · 1940 · age 27 · b. ~1913 · Indiana
★ You are viewing this record
Sibling
Jeanette Robbins
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Stephen Robbins
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Robbins
Sibling · 1940 · age 19
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-t0627-01123-00058)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lena Dehenbaugh | 14 | Head | — | Ohio |
| 2 | Richard Marshall | 11 | Step son | — | Indiana |
| 3 | Harry Dehenbaugh | 55 | Father | — | Pennsylvania |
| 4 | Martha Dehenbaugh | 49 | Mother | — | Pennsylvania |
| 5 | Dilmar Wells | 24 | Lodger | Cook | Indiana |
| 6 | Mary Wells | 24 | Lodger | Night Maintenance | Indiana |
| 7 | Stephen Wells | 0 | Lodger | — | Indiana |
| 8 | Leona Pearson | 52 | Lodger | Cook | Indiana |
| 9 | Walter R. Beard | 74 | Head | — | Ohio |
| 10 | James G. Leggett | 54 | Son | Salesman | Illinois |
| 11 | Gertrude Leggett | 52 | Daughter-in-law | Roomer | Illinois |
| 12 | Marie Pooler | 29 | Daughter | Cashier | Illinois |
| 13 | Glen Van Scyoc | 23 | Lodger | Attendant | Indiana |
| 14 | Samuel Easter | 25 | Lodger | Salesman | Indiana |
| 15 | Bertha Easter | 21 | Lodger | Soda Dispenser | Nebraska |
| 16 | George S. Sr. Wilson | 81 | Head | Retired | Indiana |
| 17 | Daisy S. Wilson | 69 | Wife | — | Indiana |
| 18 | George S. Jr. Wilson | 35 | Son | Attorney | Indiana |
| 19 | Helen L. Wilson | 33 | Daughter | Social Worker | Indiana |
| 20 | Harry L. Robbins | 56 | Head | Realtor | Indiana |
| 21 | Lillian M. Robbins | 50 | Wife | Saleslady | Maryland |
| 22 | John W. Robbins THIS PERSON | 27 | Son | Musician | Indiana |
| 23 | Jeanette Robbins | 24 | Daughter | Harpist | Indiana |
| 24 | William A. Robbins | 19 | Son | — | Indiana |
| 25 | Stephen Robbins | 16 | Son | — | Indiana |
| 26 | Edith Stonebraker | 57 | Maid | Maid | Indiana |
| 27 | Fred L. Stickle | 50 | Head | Executor | Vermont |
| 28 | Mable Stickle | 36 | Wife | — | Vermont |
| 29 | Roger Stickle | 21 | Son | Machinist | Vermont |
| 30 | Raymond Stickle | 21 | Son | Machinist | Vermont |
| 31 | Cole Stickle | 19 | Son | — | Vermont |
| 32 | Phyllis Stickle | 16 | Daughter | — | Vermont |
| 33 | Ruth W. Stickle | 12 | Son | — | Vermont |
| 34 | Hazel Stickle | 7 | Daughter | — | Indiana |
| 35 | John C. Owens | 62 | Head | Salesman | Ohio |
| 36 | Blanche M. Owens | 52 | Wife | — | Indiana |
| 37 | Lora (X) Davis | 63 | Head | Roomer | Indiana |
| 38 | Richard Mohn | 48 | Roomer | Barker | Indiana |
| 39 | Jessie Logan | 48 | Head | Librarian | Illinois |
| 40 | Alice Cole | 34 | Roomer | P.B.X. Operator | Indiana |
Pedigree Summary
John + 3 siblings
Gen 1 · 2 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)