JW
John Wolf — 1940 US Census Record
Model Tree available1940 United States Federal Census · Clark-County, Ohio
Our Model Tree links this John Wolf across the 1920, 1930 and 1940 US Censuses in Clark-County, Ohio (XGBoost, ~Confirmed), with identified parents Elmer & Susie — first a son (b.~1914), then head of a 4-person household.
Age 26
b. ~1914
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Clark-County, Ohio |
| Surname | Wolf |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Harmony Twp |
| 1935 Residence (County) | Clark |
| Additional Details | |
| Occupation | Sales Clerk |
| Industry | Auto Accessories |
| Class of Worker | PW |
| Hours Worked | 4 |
| Income (1939) | 298 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Sales Clerk |
| Township / Ward | Harmony Twp |
| Est. Birth Year | ~1914 |
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 |
|---|---|---|---|---|
| Olive Wolf | Daughter | — | 25 | ~1915 |
| Susie Wolf | Head | — | 64 | ~1876 |
| Ada Scheffel | Other | — | 69 | ~1871 |
| John Wolf | Son | — | 26 | ~1914 |
Census Appearances
1920
Clark, Ohio
Son, age 6
Clark, Ohio · implied b. ~1914 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wolf |
| Given Name | John E |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Clark, Ohio
Son, age 16
Clark, Ohio · implied b. ~1914 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wolf |
| Given Name | John E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Clark-County, Ohio
Son, age 26
Clark-County, Ohio · implied b. ~1914 — 4 household members
| Surname | Wolf |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Harmony Twp |
| 1935 Residence (County) | Clark |
| Occupation | Sales Clerk |
| Industry | Auto Accessories |
| Class of Worker | PW |
| Hours Worked | 4 |
| Income (1939) | 298 |
| Highest Grade | H-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 Wolf across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Elmer Wolf (~0.92 confidence) and mother Susie Wolf (~0.92 confidence) and mother Susie Wolf (~0.92 confidence) and father Ernest Hartzoz (~0.60 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.84
Father
Elmer Wolf
b. ~1862
Source father
● Household
· direct · ~0.92
Mother
Susie Wolf
b. ~1875
Source mother
● Household
· direct · ~0.92
Mother
Susie Wolf
b. ~1876
Source mother
● Household
· direct · ~0.92
Father
Ernest Hartzoz
b. ~1902
Source father
● Household
· direct · ~0.6
This person
Anchor record
John Wolf
Son · 1940 · age 26 · b. ~1914 · Ohio
★ You are viewing this record
Sibling
Olive Wolf
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Clark-County, Ohio
Open full size
1940 US Federal Census — Clark-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03038-00277)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Arthur C. Johnson | 37 | Head | Truck Driver | Ohio |
| 2 | Grant C. Johnson | 11 | Son | — | Ohio |
| 3 | Francis M. Johnson | 9 | Daughter | — | Ohio |
| 4 | Robert L. Johnson | 7 | Son | — | Ohio |
| 5 | Donna Johnson | 5 | Daughter | — | Ohio |
| 6 | Susie B. Wolf | 64 | Head | — | Ohio |
| 7 | John Wolf THIS PERSON | 26 | Son | Sales Clerk | Ohio |
| 8 | Olive Wolf | 25 | Daughter | Dictaphone Op. | Ohio |
| 9 | Ada L. Scheffel | 69 | Sister | — | Ohio |
| 10 | Blanche A. Gilliland | 49 | Head | Farm Work | Ohio |
| 11 | Blanche A. Gilliland | 49 | Wife | — | Ohio |
| 12 | Lee Gilliland | 20 | Son | Farm Work | Ohio |
| 13 | Ned Gilliland | 17 | Son | Painting | Ohio |
| 14 | Esther Gilliland | 15 | Daughter | House Work | Ohio |
| 15 | Jean Gilliland | 14 | Daughter | — | Ohio |
| 16 | Dorothy Gilliland | 13 | Daughter | — | Ohio |
| 17 | Margaret L. Gilliland | 12 | Daughter | — | Ohio |
| 18 | Joan Gilliland | 10 | Daughter | — | Ohio |
| 19 | Rosemary Gilliland | 10 | Daughter | — | Ohio |
| 20 | Eileen Gilliland | 8 | Daughter | — | Ohio |
| 21 | Martha Effie Gilliland | 6 | Daughter | — | Ohio |
| 22 | Marlin Gilliland | 3 | Son | — | Ohio |
| 23 | Lester B. Runyan | 62 | Head | — | Ohio |
| 24 | Walter Murray | 48 | Head | Farmer | Ohio |
| 25 | Myrtle B. Murray | 43 | Wife | — | Ohio |
| 26 | Wanda Murray | 22 | Daughter | — | Ohio |
| 27 | Robert Balsiger | 29 | Head | Farm Work | Ohio |
| 28 | Betty Q. Balsiger | 16 | Wife | — | Ohio |
| 29 | Warren Tingley | 59 | Head | Farmer | Ohio |
| 30 | Cora B. Tingley | 60 | Wife | — | Ohio |
| 31 | Lewis Tingley | 17 | Son | Farm Work | Ohio |
| 32 | Donald Merritt | 26 | Head | Farm Work | Ohio |
| 33 | Inis R. Merritt | 16 | Wife | — | Ohio |
| 34 | Lloyd E. Merritt | 0 | Son | — | Ohio |
| 35 | Aubrey Q. Flannery | 32 | Head | Gear Machinist | Kentucky |
| 36 | Erna Flannery | 31 | Wife | — | Kentucky |
| 37 | Lenora Flannery | 12 | Daughter | — | Kentucky |
| 38 | Herman Flannery | 8 | Son | — | Kentucky |
| 39 | Loretta Flannery | 6 | Daughter | — | Kentucky |
| 40 | Louise Flannery | 4 | Daughter | — | Ohio |
Pedigree Summary
John + 1 sibling
Gen 1 · 4 parents
~0.84
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)