JU
John Underwood — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hamilton-County, Ohio
Our Model Tree links this John Underwood across the 1920, 1930 and 1940 US Censuses in Hamilton-County, Ohio (XGBoost, ~Confirmed), with identified parents Lillian & John — first a son (b.~1920), then head of a 3-person household.
Age 20
b. ~1920
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hamilton-County, Ohio |
| Surname | Underwood |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Cincinnati City |
| 1935 Residence (County) | Hamilton |
| Additional Details | |
| Occupation | Clerk |
| Industry | Construction Co |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 366 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Clerk |
| Township / Ward | Cincinnati City |
| Est. Birth Year | ~1920 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Roy Underwood | Head | — | 55 | ~1885 |
| John Underwood | Son | — | 20 | ~1920 |
| Lillian Underwood | Spouse | — | 57 | ~1883 |
Census Appearances
1920
Hamilton, Ohio
Son, age
Hamilton, Ohio · implied b. ~1920 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Underwood |
| Given Name | John T. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Hamilton, Ohio
Son, age 10
Hamilton, Ohio · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Underwood |
| Given Name | John T. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Hamilton-County, Ohio
Son, age 20
Hamilton-County, Ohio · implied b. ~1920 — 3 household members
| Surname | Underwood |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Cincinnati City |
| 1935 Residence (County) | Hamilton |
| Occupation | Clerk |
| Industry | Construction Co |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 366 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Underwood across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Lillian Underwood (~0.92 confidence) and father John Underwood (~0.92 confidence) and father Roy Underwood (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Lillian Underwood
b. ~1883
Source mother
● Household
· direct · ~0.92
Father
John Underwood
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Roy Underwood
b. ~1885
Source father
● Household
· direct · ~0.92
This person
Anchor record
John Underwood
Son · 1940 · age 20 · b. ~1920 · Ohio
★ 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 — Hamilton-County, Ohio
Open full size
1940 US Federal Census — Hamilton-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03190-00004)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anna Soberstein | 63 | Head | Cook | Indiana |
| 2 | Ossie Oakley | 43 | Head | Janit. Builder | Alabama |
| 3 | Mary Oakley | 48 | Wife | — | Tennessee |
| 4 | Elizabeth Feeher | 66 | Head | — | Indiana |
| 5 | Kate Feeher | 60 | Sister | Cook | Indiana |
| 6 | Rose Feeher | 56 | Sister | Companion | Indiana |
| 7 | William Bauer | 56 | Head | Laborer | Ohio |
| 8 | Anna Bauer | 59 | Wife | — | Ohio |
| 9 | Ruth Bauer | 22 | Daughter | — | Ohio |
| 10 | Oliver Smith | 58 | Head | — | Ohio |
| 11 | Laura Smith | 50 | Wife | — | Ohio |
| 12 | Orville Smith | 20 | Son | Salesman | Ohio |
| 13 | Edward Smith | 19 | Son | Salesman | Ohio |
| 14 | Donald Smith | 11 | Son | — | Ohio |
| 15 | Jacob Rissman | 61 | Head | Confectionery | Russia |
| 16 | Annie Rissman | 48 | Wife | — | Kentucky |
| 17 | Harry Scholten | 45 | Head | Auto Mechanic | Ohio |
| 18 | Scholten | None | — | — | — |
| 19 | Robert Collett | 28 | Head | Laborer | Kentucky |
| 20 | Bonnie Collett | 23 | Wife | — | Kentucky |
| 21 | Barbara Ann Collett | 2 | Daughter | — | Kentucky |
| 22 | William Holdway | 26 | Head | Welder | Tennessee |
| 23 | Blanche Holdway | 29 | Wife | — | Kentucky |
| 24 | Joan Holdway | 8 | Daughter | — | Kentucky |
| 25 | Clyde Holdway | 5 | Son | — | Kentucky |
| 26 | Roy A Underwood | 55 | Head | Photographer | Indiana |
| 27 | Lillian Underwood | 57 | Wife | — | Indiana |
| 28 | John Underwood THIS PERSON | 20 | Son | Clerk | Ohio |
| 29 | Ida Benzott | 32 | Head | — | Ohio |
| 30 | Henry Benzott | 37 | Son | — | Ohio |
| 31 | Emma Benzott | 32 | Daughter | Stamper | Ohio |
| 32 | John Benzott | 30 | Son | — | Ohio |
| 33 | Mildred Benzott | 28 | Daughter | Cutter | Ohio |
| 34 | Joe Benzott | 25 | Son | — | Ohio |
| 35 | Arthur Benzott | 20 | Son | Truck Driver | Ohio |
| 36 | Ruby Tarpley | 54 | Head | — | Kentucky |
| 37 | Annette Tarpley | 22 | Daughter | — | Tennessee |
| 38 | Betty Joe Phelps | 15 | Lodger | — | Ohio |
| 39 | Margaret Riley | 27 | Head | — | Kentucky |
| 40 | Charles Riley | 9 | Son | — | Ohio |
Pedigree Summary
John
Gen 1 · 3 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)