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John Simpson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hardin-County, Ohio
Our Model Tree links this John Simpson across the 1920, 1930 and 1940 US Censuses in Hardin-County, Ohio (XGBoost, ~Confirmed) — first a head (b.~1884), then head of a 3-person household.
Age 56
b. ~1884
Male
Head
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hardin-County, Ohio |
| Surname | Simpson |
| Given Name | John C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | McDonald T. |
| 1935 Residence (County) | Hardin |
| Additional Details | |
| Occupation | Insurance Salesman |
| Industry | Ohio Casualty Ins. Co. |
| Class of Worker | PW |
| Hours Worked | 18 |
| Income (1939) | 500 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Insurance Salesman |
| Township / Ward | Mcdonald T |
| Est. Birth Year | ~1884 |
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 |
|---|---|---|---|---|
| John Simpson | Head | — | 56 | ~1884 |
| Clifton Simpson | Son | — | 14 | ~1926 |
| Alta Simpson | Spouse | — | 50 | ~1890 |
Census Appearances
1920
Hardin, Ohio
Head, age 36
Hardin, Ohio · implied b. ~1884 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simpson |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Hardin, Ohio
Head, age 46
Hardin, Ohio · implied b. ~1884 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simpson |
| Given Name | John C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 25 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Farmer |
| Industry | general farm |
| Class of Worker | E |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Hardin-County, Ohio
Head, age 56
Hardin-County, Ohio · implied b. ~1884 — 3 household members
| Surname | Simpson |
| Given Name | John C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | McDonald T. |
| 1935 Residence (County) | Hardin |
| Occupation | Insurance Salesman |
| Industry | Ohio Casualty Ins. Co. |
| Class of Worker | PW |
| Hours Worked | 18 |
| Income (1939) | 500 |
| Highest Grade | 8 |
| 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 Simpson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Simpson
Head · 1940 · age 56 · b. ~1884 · 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 — Hardin-County, Ohio
Open full size
1940 US Federal Census — Hardin-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03082-00619)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Edith Roberts | 47 | Wife | — | Ohio |
| 42 | Harold Eugene Roberts | 20 | Son | Electrician | Ohio |
| 43 | Miriam Laberta Roberts | 18 | Daughter | — | Ohio |
| 44 | George F. Shaffer | 64 | Head | Cemetery Attendant | Ohio |
| 45 | Verdie B. Shaffer | 65 | Wife | — | Ohio |
| 46 | Melvin V. Shaffer | 25 | Head | Farm Tenant | Ohio |
| 47 | Ruth Shaffer | 19 | Wife | — | Ohio |
| 48 | Fred H. Myers | 45 | Head | Painter | Ohio |
| 49 | Clae E. Myers | 39 | Wife | — | Ohio |
| 50 | Everette Myers | 15 | Son | — | Ohio |
| 51 | Charles Edward Fleece | 49 | Head | Farm Tenant | Ohio |
| 52 | Irma V. Fleece | 50 | Wife | — | Ohio |
| 53 | Carl Elmo Geise | 21 | Step Son | Laborer | Ohio |
| 54 | Earl L. Geise | 18 | Step Son | Laborer | Ohio |
| 55 | Jerry M. Cartwright | 76 | Head | — | Ohio |
| 56 | Nelia Holland | 28 | Housekeeper | — | Kentucky |
| 57 | Howard Holland | 12 | Son | — | Kentucky |
| 58 | Noah Holland | 7 | Son | — | Kentucky |
| 59 | Imogene Holland | 2 | Daughter | — | Ohio |
| 60 | John C. Simpson THIS PERSON | 56 | Head | Insurance Salesman | Ohio |
| 61 | Alta Mabel Simpson | 50 | Wife | — | Ohio |
| 62 | Clifton Jr. Simpson | 14 | Son | — | Ohio |
| 63 | Charles P. Fleece | 83 | Head | Farm Owner | Virginia |
| 64 | Bernice Musser | 32 | Daughter | — | Ohio |
| 65 | Arthur Musser | 27 | Grand son | Laborer | Ohio |
| 66 | John N. Mcginnis | 72 | Head | — | Ohio |
| 67 | Anna Mcginnis | 68 | Wife | — | Ohio |
| 68 | Ernest V. Kindle | 31 | Head | — | Ohio |
| 69 | Mildred Kindle | 30 | Wife | — | Ohio |
| 70 | Rose Fleece | 71 | Mother in law | — | Ohio |
| 71 | Ralph Richardson | 25 | Head | Laborer | Ohio |
| 72 | Louella Richardson | 27 | Wife | — | Ohio |
| 73 | Lois Ann Richardson | 2 | Daughter | — | Ohio |
| 74 | Henry Schrader | 40 | Head | Farm Owner | Ohio |
| 75 | Lydia Schrader | 35 | Wife | — | Ohio |
| 76 | Allie Schrader | 13 | Son | — | Ohio |
| 77 | Foster Schrader | 9 | Son | — | Ohio |
| 78 | Robert Schrader | 7 | Son | — | Ohio |
| 79 | Ralph S. Nesser | 47 | Head | Farm Tenant | Kansas |
| 80 | Pauline Nesser | 24 | Daughter | — | Ohio |
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)