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John Ott — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Howard-County, Iowa
Our Model Tree links this John Ott across the 1930 and 1940 US Censuses in Howard-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1885), then head of a 10-person household.
Age 55
b. ~1885
Male
Head
Born: Germany
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Howard-County, Iowa |
| Surname | Ott |
| Given Name | John B. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Germany |
| 1935 Residence (City) | Vernon Springs Twp |
| 1935 Residence (County) | Howard |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Laborer |
| Industry | W.P.A. |
| Class of Worker | GW |
| Hours Worked | 44 |
| Income (1939) | 788 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
| Occupation | Laborer |
| Township / Ward | Vernon Springs Twp |
| Est. Birth Year | ~1885 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Ott | Son | — | 8 | ~1932 |
| Mary Ott | Spouse | — | 42 | ~1898 |
| Janice Ott | Daughter | — | 1 | ~1939 |
| Lucille Ott | Daughter | — | 15 | ~1925 |
| Joyce Ott | Daughter | — | 2 | ~1938 |
| Francis Ott | Son | — | 5 | ~1935 |
| Melvin Ott | Son | — | 13 | ~1927 |
| Orville Ott | Son | — | 10 | ~1930 |
| Ervin Ott | Son | — | 25 | ~1915 |
| John Ott | Head | — | 55 | ~1885 |
Census Appearances
1930
Winneshiek, Iowa
Head, age 45
Winneshiek, Iowa · implied b. ~1885 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ott |
| Given Name | John D |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Germany |
| Naturalization Status | Naturalized |
| Year of Immigration | 1889 |
| Age at First Marriage | 21 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | German |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
1940
Howard-County, Iowa
Head, age 55
Howard-County, Iowa · implied b. ~1885 — 10 household members
| Surname | Ott |
| Given Name | John B. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Germany |
| 1935 Residence (City) | Vernon Springs Twp |
| 1935 Residence (County) | Howard |
| Naturalization Status | Naturalized |
| Occupation | Laborer |
| Industry | W.P.A. |
| Class of Worker | GW |
| Hours Worked | 44 |
| Income (1939) | 788 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth Country | Germany |
| Birthplace (normalized) | germany |
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 55 · b. ~1885 · Iowa
★ 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 — Howard-County, Iowa
Open full size
1940 US Federal Census — Howard-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01167-00389)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Reis Olive J. Reis | 30 | Son | Farm Hand | Iowa |
| 2 | Nicholas Susan M. Reis | 64 | Head | — | Iowa |
| 3 | Etta B. Reis | 57 | Wife | — | Iowa |
| 4 | Bernard Krueger | 35 | Head | Tractor Work | Iowa |
| 5 | Loretta Krueger | 31 | Wife | — | Iowa |
| 6 | Eileen L. Krueger | 8 | Daughter | — | Iowa |
| 7 | Mervin D. Krueger | 6 | Son | — | Iowa |
| 8 | Carrie A. Setchell | 74 | Head | — | Illinois |
| 9 | Henry C. Maurer | 33 | Head | Farm Hand | Iowa |
| 10 | David A. Maurer | 72 | Father | — | Ohio |
| 11 | Maggie S. Maurer | 55 | Mother | — | Iowa |
| 12 | Gladys L. Maurer | 15 | Sister | — | Iowa |
| 13 | Theodore W. Reis | 57 | Head | Farm Operator | Iowa |
| 14 | May W. Reis | 43 | Wife | — | Iowa |
| 15 | Marilyn A. Reis | 4 | Daughter | — | Iowa |
| 16 | Oscar Paston | 42 | Head | Garage Operator | Louisiana |
| 17 | Florence S. Paston | 35 | Wife | — | Iowa |
| 18 | George R. Paston | 9 | Son | — | Iowa |
| 19 | Robert L. Paston | 2 | Son | — | Iowa |
| 20 | Mary E. Bedford | 70 | Mother in law | — | Iowa |
| 21 | John B. Ott THIS PERSON | 55 | Head | Laborer | Germany |
| 22 | Mary C. Ott | 42 | Wife | — | Mississippi |
| 23 | Ervin F. Ott | 25 | Son | Farm Hand | Iowa |
| 24 | Lucille L. Ott | 15 | Daughter | — | Iowa |
| 25 | Melvin J. Ott | 13 | Son | — | Iowa |
| 26 | Orville M. Ott | 10 | Son | — | Iowa |
| 27 | John J. Ott | 8 | Son | — | Iowa |
| 28 | Francis W. Ott | 5 | Son | — | Iowa |
| 29 | Joyce M. Ott | 2 | Daughter | — | Iowa |
| 30 | Janice E. Ott | 1 | Daughter | — | Iowa |
| 31 | Cyril A. Rink | 37 | Head | Farm Operator | Iowa |
| 32 | Frances T. Rink | 39 | Wife | — | Iowa |
| 33 | Delores W. Rink | 15 | Daughter | — | Iowa |
| 34 | Victor F. Rink | 34 | Head | Farm Operator | Iowa |
| 35 | Irene M. Rink | 24 | Wife | — | Iowa |
| 36 | La Donna A. Rink | 1 | Daughter | — | Iowa |
| 37 | Nicholas W. Rink | 66 | Head | Farm Operator | New York |
| 38 | Anna A. Rink | 64 | Wife | — | Iowa |
| 39 | Cletus N. Rink | 23 | Son | Farm Hand | Iowa |
| 40 | Catherine N. Wolf | 58 | Head | — | Iowa |
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)