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John Ott — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Bartholomew-County, Indiana
Our Model Tree links this John Ott across the 1930 and 1940 US Censuses in Bartholomew-County, Indiana (XGBoost, ~Confirmed) — first a son (b.~1917), then head of a 9-person household.
Age 23
b. ~1917
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Bartholomew-County, Indiana |
| Surname | Ott |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Columbus |
| 1935 Residence (County) | Bartholomew |
| Additional Details | |
| Occupation | Labourer |
| Industry | Pulley Works |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 200 |
| Highest Grade | H-4 |
| 1935 Residence | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Labourer |
| Township / Ward | Union Twp |
| 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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Irene Ott | Daughter | — | 10 | ~1930 |
| John Ott | Son | — | 23 | ~1917 |
| Frank Ott | Son | — | 1 | ~1939 |
| William Ott | Head | — | 55 | ~1885 |
| Jessie Ott | Daughter | — | 12 | ~1928 |
| Sarah Ott | Daughter | — | 16 | ~1924 |
| Robert Ott | Son | — | 18 | ~1922 |
| Tressa Ott | Spouse | — | 41 | ~1899 |
| Carolyn Ott | Daughter | — | 8 | ~1932 |
Census Appearances
1930
Bartholomew, Indiana
Other, age 13
Bartholomew, Indiana · implied b. ~1917 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ott |
| Given Name | John J. |
| Relationship to Head | Grand son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Bartholomew-County, Indiana
Son, age 23
Bartholomew-County, Indiana · implied b. ~1917 — 9 household members
| Surname | Ott |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Columbus |
| 1935 Residence (County) | Bartholomew |
| Occupation | Labourer |
| Industry | Pulley Works |
| Class of Worker | PW |
| Hours Worked | 42 |
| Income (1939) | 200 |
| 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 Ott across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Ott
Son · 1940 · age 23 · b. ~1917 · Indiana
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Sibling
Irene Ott
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sarah Ott
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Ott
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jessie Ott
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Ott
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carolyn Ott
Sibling · 1940 · age 8
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 — Bartholomew-County, Indiana
Open full size
1940 US Federal Census — Bartholomew-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01026-00787)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Pearl E. Christopher | 36 | Wife | — | South Dakota |
| 2 | Newell H. Christopher | 16 | Son | — | South Dakota |
| 3 | Owen G. Christopher | 12 | Son | — | South Dakota |
| 4 | Lila L. Christopher | 8 | Daughter | — | South Dakota |
| 5 | Pearl Shepherd | 42 | Head | — | Indiana |
| 6 | George A. Shepherd | 23 | Son | Labourer | Indiana |
| 7 | Lillian F. Shepherd | 21 | Daughter-in-law | — | Indiana |
| 8 | Larry Max Shepherd | 0 | Grand-son | — | Indiana |
| 9 | Mitchell Day | 37 | Half-Uncle | — | Indiana |
| 10 | Martha E. Reumann | 79 | Boarder | — | Indiana |
| 11 | George O'Laughlin | 70 | Head | Car Inspector | Indiana |
| 12 | Molly O'Laughlin | 69 | Wife | — | Indiana |
| 13 | Lula May O'Laughlin | 48 | Daughter | — | Indiana |
| 14 | Gerald A. Fidler | 51 | Head | Fireman | Indiana |
| 15 | Mary Ellen Fidler | 35 | Wife | — | Indiana |
| 16 | James Fidler | 14 | Son | — | Indiana |
| 17 | William Ott | 55 | Head | Machinist | Indiana |
| 18 | Tressa Ott | 41 | Wife | — | Indiana |
| 19 | Robert Ott | 18 | Son | Attendant | Indiana |
| 20 | Sarah Ott | 16 | Daughter | — | Indiana |
| 21 | Jessie Ott | 12 | Daughter | — | Indiana |
| 22 | Irene Ott | 10 | Daughter | — | Indiana |
| 23 | Carolyn Ott | 8 | Daughter | — | Indiana |
| 24 | Frank Jr. Ott | 1 | Son | — | Indiana |
| 25 | John Ott THIS PERSON | 23 | Son | Labourer | Indiana |
| 26 | John N. Reeves | 40 | Head | Farm Hand | Indiana |
| 27 | Ruth Reeves | 38 | Wife | — | Kentucky |
| 28 | Blanche Reeves | 16 | Daughter | — | Indiana |
| 29 | Pauline Reeves | 14 | Daughter | — | Indiana |
| 30 | Sam Hundley | 66 | Head | — | Kentucky |
| 31 | Laura Gilpin | 28 | House-keeper | House Keeper | Kentucky |
| 32 | Irvin Fiddis | 43 | Head | Black Smith | Indiana |
| 33 | Jessie Fiddis | 35 | Wife | — | Indiana |
| 34 | Lloyd Fiddis | 1 | Son | — | Indiana |
| 35 | Lillie Dinn | 32 | Head | Farm Hand | Indiana |
| 36 | Russell Dinn | 18 | Son | House-Helper | Indiana |
| 37 | Sam Davis | 57 | Head | Farmer | Kentucky |
| 38 | Ruth Davis | 45 | Wife | — | Kentucky |
| 39 | Charles Cordray | 71 | Head | — | Indiana |
| 40 | Jennie Elizabeth Cordray | 68 | Wife | — | Indiana |
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)