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John Roth — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Harrison-County, Iowa
Our Model Tree links this John Roth across the 1920, 1930 and 1940 US Censuses in Harrison-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1889), then head of a 4-person household.
Age 51
b. ~1889
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Harrison-County, Iowa |
| Surname | Roth |
| Given Name | John A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Harrison Twp. |
| 1935 Residence (County) | Harrison |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | Harrison Twp |
| Est. Birth Year | ~1889 |
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 |
|---|---|---|---|---|
| Lucille Roth | Daughter | — | 25 | ~1915 |
| Lorene Roth | Daughter | — | 26 | ~1914 |
| John Roth | Head | — | 51 | ~1889 |
| Minnie Roth | Spouse | — | 51 | ~1889 |
Census Appearances
1920
Harrison, Iowa
Head, age 31
Harrison, Iowa · implied b. ~1889 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Roth |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | Emp |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | German |
| Birth State | Iowa |
| Birth Country | United States |
| Year of Naturalization | R |
| Birthplace (normalized) | iowa |
1930
Harrison, Iowa
Head, age 41
Harrison, Iowa · implied b. ~1889 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Roth |
| Given Name | John A |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 24 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Farmer |
| Industry | General farming |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Radio Set | R |
| Veteran | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Harrison-County, Iowa
Head, age 51
Harrison-County, Iowa · implied b. ~1889 — 4 household members
| Surname | Roth |
| Given Name | John A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Harrison Twp. |
| 1935 Residence (County) | Harrison |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Roth across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Roth
Head · 1940 · age 51 · b. ~1889 · Iowa
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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 — Harrison-County, Iowa
Open full size
1940 US Federal Census — Harrison-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01166-00207)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph P. Mccann | 29 | Head | Farmer | Iowa |
| 2 | Frank P. Mccann | 50 | Brother | Farmer | Iowa |
| 3 | Peter J. Mccann | 77 | Father | — | Illinois |
| 4 | Paul Hampton | 15 | Nephew | — | Iowa |
| 5 | John A. Roth THIS PERSON | 51 | Head | Farmer | Iowa |
| 6 | Minnie M. Roth | 51 | Wife | — | Iowa |
| 7 | Lorene J. Roth | 26 | Daughter | School Teacher | Iowa |
| 8 | Lucille F. Roth | 25 | Daughter | Saleslady | Iowa |
| 9 | Sim Hicks | 61 | Head | Farmer | Iowa |
| 10 | Daisy A. Hicks | 63 | Wife | — | Iowa |
| 11 | Charles E. Branson | 61 | Head | Farmer | Iowa |
| 12 | Lana A. Branson | 50 | Wife | — | Iowa |
| 13 | William Branson | 43 | Brother | Farmer | Iowa |
| 14 | Art. H. Vollmer | 40 | Head | Farmer | Nebraska |
| 15 | Ida Mae Vollmer | 37 | Wife | — | Missouri |
| 16 | Dale Vollmer | 25 | Son | — | Iowa |
| 17 | Leo P. Sullivan | 42 | Head | Farmer | Iowa |
| 18 | Elizabeth Sullivan | 42 | Wife | — | Iowa |
| 19 | Joseph Sullivan | 22 | Son | — | Iowa |
| 20 | Robert Sullivan | 16 | Son | — | Iowa |
| 21 | Delores Sullivan | 15 | Daughter | — | Iowa |
| 22 | James Sullivan | 14 | Son | — | Iowa |
| 23 | Sheral Sullivan | 12 | Son | — | Iowa |
| 24 | Melvin Sullivan | 10 | Son | — | Iowa |
| 25 | Mildred Clare Sullivan | 9 | Daughter | — | Iowa |
| 26 | Leo Paul Sullivan | 7 | Son | — | Iowa |
| 27 | Kenneth Sullivan | 5 | Son | — | Iowa |
| 28 | Moses M. Miles | 44 | Head | Apiary | Iowa |
| 29 | Edna A. Miles | 43 | Wife | — | Iowa |
| 30 | Sarah Jane Miles | 9 | Daughter | — | Iowa |
| 31 | Clifford E. Miles | 7 | Son | — | Iowa |
| 32 | Mary Lou Miles | 5 | Daughter | — | Iowa |
| 33 | Walter A. Miles | 2 | Son | — | Iowa |
| 34 | Edward S. Miles | 74 | Father | Apiary | Missouri |
| 35 | Urban S. Hong | 44 | Head | Farmer | Iowa |
| 36 | Cleopha A. Hong | 39 | Wife | — | Iowa |
| 37 | Modesta Hong | 16 | Daughter | — | Iowa |
| 38 | Cecil Hong | 13 | Son | — | Iowa |
| 39 | Cyril Hong | 13 | Son | — | Iowa |
| 40 | Harold E. Duyton|Dryton | 35 | Head | Farmer | Nebraska |
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)