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John Ott — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this John Ott across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1903), then head of a 4-person household.
Age 37
b. ~1903
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Ott |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Shaler Township |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Electrician |
| Industry | Pipe Mill |
| Class of Worker | PW |
| Income (1939) | 1600 |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Electrician |
| Township / Ward | Shaler Township |
| Est. Birth Year | ~1903 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| John Ott | Head | — | 37 | ~1903 |
| John Ott | Son | — | 16 | ~1924 |
| Amelia Ott | Spouse | — | 37 | ~1903 |
| Charles Ott | Son | — | 12 | ~1928 |
Census Appearances
1920
Allegheny, Pennsylvania
Other, age 16
Allegheny, Pennsylvania · implied b. ~1904 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ott |
| Given Name | John H |
| Relationship to Head | Nephew |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Clerk |
| Industry | Insurance Office |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Head, age 26
Allegheny, Pennsylvania · implied b. ~1904 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ott |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 21 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Electrician |
| Industry | Pipe Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 4000 |
| Radio Set | R |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Head, age 37
Allegheny-County, Pennsylvania · implied b. ~1903 — 4 household members
| Surname | Ott |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Shaler Township |
| 1935 Residence (County) | Allegheny |
| Occupation | Electrician |
| Industry | Pipe Mill |
| Class of Worker | PW |
| Income (1939) | 1600 |
| Highest Grade | H 1 |
| 1935 Residence | Same place |
| 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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Ott
Head · 1940 · age 37 · b. ~1903 · Pennsylvania
★ 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 — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03417-00228)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | A. D. Fillie | 60 | Wife | — | Pennsylvania |
| 2 | A. Leroy | 30 | Son | Manager | Pennsylvania |
| 3 | Earl R. Hogue | 23 | Lodger | Teacher | Pennsylvania |
| 4 | Kathleen Hogue | 25 | Lodger | Teacher | Pennsylvania |
| 5 | Walter J. Oelschläger | 23 | Lodger | School Teacher | Pennsylvania |
| 6 | Stanley M. Vucelich | 48 | Head | Proprietor | Yugoslavia |
| 7 | Mary S. Vucelich | 42 | Wife | — | Pennsylvania |
| 8 | Milton Vucelich | 26 | Son | — | Pennsylvania |
| 9 | Betty L. Vucelich | 11 | Daughter | — | Pennsylvania |
| 10 | Mary Ferkas | 83 | Lodger | House Keeper | Czechoslovakia |
| 11 | Teressa H. Litch | 68 | Head | Retired | Ohio |
| 12 | Belle Litch | 44 | Daughter | — | Pennsylvania |
| 13 | Jane B. Bunn | 37 | Head | — | Pennsylvania |
| 14 | Dorothy J. Plumb | 71 | Mother | Sales Clerk | Pennsylvania |
| 15 | James W. Plumb | 9 | Son | — | Pennsylvania |
| 16 | Jane Plumb | 5 | Daughter | — | Ohio |
| 17 | Jean Plumb | 4 | Daughter | — | Ohio |
| 18 | Mary C. O. Muir | 69 | Head | — | Pennsylvania |
| 19 | Paul P. Muir | 47 | Son | Manager | Pennsylvania |
| 20 | Emma Hassinger | 52 | Head | House Keeper | Pennsylvania |
| 21 | Emma L. Hassinger | 19 | Daughter | House Keeper | Pennsylvania |
| 22 | Henry C. Hassinger | 15 | Son | — | Pennsylvania |
| 23 | Irene H. Hassinger | 14 | Daughter | — | Pennsylvania |
| 24 | Paul J. Heiny | 29 | Head | Sales Clerk | Pennsylvania |
| 25 | Gertrude C. Heiny | 27 | Wife | — | Pennsylvania |
| 26 | Sandra C. Heiny | 9 | Daughter | — | Pennsylvania |
| 27 | Ida M. Walker | 55 | Head | — | Pennsylvania |
| 28 | Ada M. Walker | 21 | Daughter | Nurse | Pennsylvania |
| 29 | Irene M. Wandel | 27 | Wife | Housewife | Pennsylvania |
| 30 | Ellen Mae Wandel | 5 | Daughter | — | Pennsylvania |
| 31 | Jerome L. Wandel | 4 | Son | — | Pennsylvania |
| 32 | John Ott THIS PERSON | 37 | Head | Electrician | Pennsylvania |
| 33 | Amelia Ott | 37 | Wife | — | Pennsylvania |
| 34 | John Jr. Ott | 16 | Son | — | Pennsylvania |
| 35 | Charles C. Ott | 12 | Son | — | Pennsylvania |
| 36 | Raymond R. Williams | 42 | Head | Guard | Pennsylvania |
| 37 | Ruth A. Williams | 42 | Wife | — | Pennsylvania |
| 38 | Betty Ann Williams | 10 | Daughter | — | Pennsylvania |
| 39 | Graham S. Morgan | 47 | Head | Stock Clerk | Pennsylvania |
| 40 | Louis C. Morgan | 41 | 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)