JG
John Gardner — 1940 US Census Record
Model Tree available1940 United States Federal Census · Pickaway-County, Ohio
Our Model Tree links this John Gardner across the 1920, 1930 and 1940 US Censuses in Pickaway-County, Ohio (XGBoost, ~Confirmed), with identified parents Rife & Liza — first a son (b.~1898), then head of a 2-person household.
Age 42
b. ~1898
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Pickaway-County, Ohio |
| Surname | Gardner |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Salt Creek |
| 1935 Residence (County) | Pickaway |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Highest Grade | No 4 |
| 1935 Residence | Same House |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Farmer |
| Township / Ward | Salt Creek |
| Est. Birth Year | ~1898 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| R Gardner | Head | — | 60 | ~1880 |
| John Gardner | Son | — | 42 | ~1898 |
Census Appearances
1920
Pickaway, Ohio
Son, age 20
Pickaway, Ohio · implied b. ~1900 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gardner |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Pickaway, Ohio
Son, age 29
Pickaway, Ohio · implied b. ~1901 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gardner |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Laborer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Pickaway-County, Ohio
Son, age 42
Pickaway-County, Ohio · implied b. ~1898 — 2 household members
| Surname | Gardner |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Salt Creek |
| 1935 Residence (County) | Pickaway |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Highest Grade | No 4 |
| 1935 Residence | Same House |
| 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 Gardner across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Rife Gardner (~0.92 confidence) and mother Liza Gardner (~0.92 confidence) and father R Gardner (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Rife Gardner
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Liza Gardner
b. ~1872
Source mother
● Household
· direct · ~0.92
Father
R Gardner
b. ~1880
Source father
● Household
· direct · ~0.92
This person
Anchor record
John Gardner
Son · 1940 · age 42 · b. ~1898 · 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 — Pickaway-County, Ohio
Open full size
1940 US Federal Census — Pickaway-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03128-00571)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Willie L. Legg | 43 | Wife | — | West Virginia |
| 42 | Henry D. Legg | 21 | Son | Day Laborer | West Virginia |
| 43 | Mary Alice Floyd | 7 | Daughter | — | Ohio |
| 44 | James J. Arledge | 57 | Head | Farmer | Ohio |
| 45 | Hattie Arledge | 53 | Wife | — | Ohio |
| 46 | Herbert R. Dunkle | 40 | Head | Mechanic | Ohio |
| 47 | Florence Z. Dunkle | 32 | Wife | — | Ohio |
| 48 | Norma J. Dunkle | 12 | Daughter | — | Ohio |
| 49 | Guy O. Newlun | 41 | Head | Farmer | Ohio |
| 50 | Hazel Mae Newlun | 39 | Wife | — | Ohio |
| 51 | Lucille Jean Newlun | 19 | Daughter | — | Ohio |
| 52 | Ray E. Newlun | 17 | Son | Farm Laborer | Ohio |
| 53 | Barbara J. Newlun | 6 | Daughter | — | Ohio |
| 54 | Henry E. O'Harra | 31 | Head | Farmer | Ohio |
| 55 | Thelma P. O'Harra | 27 | Wife | — | Ohio |
| 56 | Eva Morris | 70 | Head | — | Ohio |
| 57 | Anna L. Pontious | 76 | Head | — | Ohio |
| 58 | William T. Spangler | 69 | Head | Inventor | Ohio |
| 59 | Genevieve Spangler | 57 | Wife | — | Michigan |
| 60 | Marjorie Ann Spangler | 14 | Daughter | — | Ohio |
| 61 | Henry C. Painter | 17 | Boarder | — | Ohio |
| 62 | Floyd W. Bennett | 58 | Head | Day Laborer | Ohio |
| 63 | Lulu A. Bennett | 64 | Wife | — | Ohio |
| 64 | Will Maugher | 47 | Head | Restaurant Worker | Ohio |
| 65 | Austin D. Kern | 70 | Head | Blacksmith | Ohio |
| 66 | Fred W. Drum | 45 | Head | Farmer | Ohio |
| 67 | Josie Drum | 43 | Wife | — | Ohio |
| 68 | Merle E. Drum | 15 | Son | — | Ohio |
| 69 | Richard F. Drum | 13 | Son | — | Ohio |
| 70 | Eldon J. Drum | 12 | Son | — | Ohio |
| 71 | Marcine M. Dickson | 17 | Boarder | — | Ohio |
| 72 | R. Gardner | 60 | Head | Farmer | Ohio |
| 73 | John Gardner THIS PERSON | 42 | Son | Farmer | Ohio |
| 74 | Robert Hartley | 55 | Head | Farmer | Ohio |
| 75 | Bessie Hartley | 50 | Wife | — | Ohio |
| 76 | Marjorie Hartley | 25 | Daughter | — | West Virginia |
| 77 | Richard Hartley | 20 | Son | Farmer | Ohio |
| 78 | Walter Hartley | 15 | Son | Farmer | Ohio |
| 79 | Paul Hartley | 16 | Son | Farmer | Ohio |
| 80 | John Hartley | 13 | 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)