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John Ott — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Blair-County, Pennsylvania
Our Model Tree links this John Ott across the 1930 and 1940 US Censuses in Blair-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1907), then head of a 6-person household.
Age 33
b. ~1907
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Blair-County, Pennsylvania |
| Surname | Ott |
| Given Name | John W |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Bellwood Blair |
| 1935 Residence (County) | Blair |
| Additional Details | |
| Occupation | laborer |
| Industry | steam railroad |
| Class of Worker | PW |
| Hours Worked | 6 |
| Income (1939) | 708 |
| Highest Grade | Hs 2 |
| 1935 Residence | Penna |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Laborer |
| Township / Ward | Antis Township |
| Est. Birth Year | ~1907 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Ethel Ott | Daughter | — | 5 | ~1935 |
| George Ott | Son | — | 10 | ~1930 |
| John Ott | Head | — | 33 | ~1907 |
| John Ott | Son | — | 9 | ~1931 |
| Ralph Ott | Son | — | 11 | ~1929 |
| Ethel Ott | Spouse | — | 32 | ~1908 |
Census Appearances
1930
Blair, Pennsylvania
Son, age 23
Blair, Pennsylvania · implied b. ~1907 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ott |
| Given Name | John W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 20 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Truck Driver |
| Industry | P.R.R. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Blair-County, Pennsylvania
Head, age 33
Blair-County, Pennsylvania · implied b. ~1907 — 6 household members
| Surname | Ott |
| Given Name | John W |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Bellwood Blair |
| 1935 Residence (County) | Blair |
| Occupation | laborer |
| Industry | steam railroad |
| Class of Worker | PW |
| Hours Worked | 6 |
| Income (1939) | 708 |
| Highest Grade | Hs 2 |
| 1935 Residence | Penna |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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
Head · 1940 · age 33 · b. ~1907 · Pennsylvania
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Blair-County, Pennsylvania
Open full size
1940 US Federal Census — Blair-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03440-00162)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Helen L Kohler | 10 | Daughter | — | Pennsylvania |
| 2 | Clyde E Kohler | 8 | Son | — | Pennsylvania |
| 3 | Kenneth E Kohler | 6 | Son | — | Pennsylvania |
| 4 | Joan E Kohler | 5 | Daughter | — | Pennsylvania |
| 5 | William H Kohler | 1 | Son | — | Pennsylvania |
| 6 | David P Hensley | 69 | Head | Laborer | Pennsylvania |
| 7 | Lula B Hensley | 51 | Wife | — | Pennsylvania |
| 8 | Harry M Ott | 66 | Head | — | Pennsylvania |
| 9 | Susan J Ott | 61 | Wife | — | Pennsylvania |
| 10 | Sylvia M Ott | 19 | Daughter | Housemaid | Pennsylvania |
| 11 | John W Ott THIS PERSON | 33 | Head | Laborer | Pennsylvania |
| 12 | Ethel M Ott | 32 | Wife | — | Pennsylvania |
| 13 | Ralph L Ott | 11 | Son | — | Pennsylvania |
| 14 | George A Ott | 10 | Son | — | Pennsylvania |
| 15 | John W Ott | 9 | Son | — | Pennsylvania |
| 16 | Ethel M Ott | 5 | Daughter | — | Pennsylvania |
| 17 | Casper J Smith | 37 | Head | Boiler Maker Helper | Pennsylvania |
| 18 | Gertrude M Smith | 33 | Wife | — | Pennsylvania |
| 19 | Anna M Smith | 4 | Daughter | — | Pennsylvania |
| 20 | Eric J Smith | 1 | Daughter | — | Pennsylvania |
| 21 | William A Oswald | 42 | Head | Laborer | Pennsylvania |
| 22 | Bertha M Oswald | 38 | Wife | — | Pennsylvania |
| 23 | Roselyn A Oswald | 15 | Daughter | — | Pennsylvania |
| 24 | Mary L Oswald | 12 | Daughter | — | Pennsylvania |
| 25 | Alice Estep | 84 | Head | — | Pennsylvania |
| 26 | Mabel Smith | 54 | Daughter | — | Pennsylvania |
| 27 | Helen Smith | 27 | Daughter | Book Keeper | Pennsylvania |
| 28 | Francis T Douglas | 64 | Head | — | Pennsylvania |
| 29 | Adeline Douglas | 60 | Wife | — | Pennsylvania |
| 30 | Robert G Douglas | 31 | Son | Laborer | Pennsylvania |
| 31 | Florence H Douglas | 34 | daughter in law | — | Pennsylvania |
| 32 | Elsa J Douglas | 14 | grandson | — | Pennsylvania |
| 33 | Bertha A Douglas | 13 | granddaughter | — | Pennsylvania |
| 34 | Kenneth E Douglas | 15 | grandson | — | Pennsylvania |
| 35 | William G Douglas | 10 | grandson | — | Pennsylvania |
| 36 | M Maud Hershey | 60 | Head | — | Pennsylvania |
| 37 | John E Hershey | 20 | Son | Farm Laborer | Pennsylvania |
| 38 | Glenn Cecil E Hershey | 27 | nephew | Farm Laborer | Pennsylvania |
| 39 | Robert E Sneath | 24 | Head | Laborer | Pennsylvania |
| 40 | Anna E Sneath | 23 | Wife | — | Pennsylvania |
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)