JG
John Gardner — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this John Gardner across the 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed), with identified parents Henry & Rose — first a head (b.~1911), then head of a 4-person household.
Age 29
b. ~1911
Male
Head
Born: Indiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Gardner |
| Given Name | John L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| Additional Details | |
| Occupation | Sales Dept. |
| Industry | Capitol Ice & Refrigeration |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 298 |
| Highest Grade | H-4 |
| 1935 Residence | Same Place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Sales Dept. |
| Township / Ward | Indianapolis |
| Est. Birth Year | ~1911 |
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 |
|---|---|---|---|---|
| Jacquelyn Gardner | Daughter | — | 3 | ~1937 |
| Shirley Gardner | Daughter | — | 4 | ~1936 |
| John Gardner | Head | — | 29 | ~1911 |
| Vivian Gardner | Spouse | — | 27 | ~1913 |
Census Appearances
1920
Marion, Indiana
Son, age 8
Marion, Indiana · implied b. ~1912 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gardner |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Marion, Indiana
Son, age 19
Marion, Indiana · implied b. ~1911 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gardner |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Bookkeeper |
| Industry | Ice Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Marion-County, Indiana
Head, age 29
Marion-County, Indiana · implied b. ~1911 — 4 household members
| Surname | Gardner |
| Given Name | John L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| Occupation | Sales Dept. |
| Industry | Capitol Ice & Refrigeration |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 298 |
| Highest Grade | H-4 |
| 1935 Residence | Same Place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Henry Gardner (~0.92 confidence) and mother Rose Gardner (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Henry Gardner
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Rose Gardner
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Gardner
Head · 1940 · age 29 · b. ~1911 · Indiana
★ 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 — Marion-County, Indiana
Open full size
1940 US Federal Census — Marion-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01124-00255)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Donald W. Dusty | 27 | Head | Promotion Director | Indiana |
| 2 | Ellen Dusty | 22 | Wife | — | Indiana |
| 3 | Donald Dusty | 1 | Son | — | Indiana |
| 4 | Karol D. Dusty | 0 | Daughter | — | Indiana |
| 5 | Harry P. Eck | 26 | Head | Special Delivery Messenger | Indiana |
| 6 | Betty P. Eck | 21 | Wife | — | Indiana |
| 7 | Harry E. Eck | 2 | Son | — | Indiana |
| 8 | Florence West | 66 | Head | — | Indiana |
| 9 | Louis H. Billman | 45 | Head | Truck Driver | Indiana |
| 10 | Doris Billman | 38 | Wife | — | Indiana |
| 11 | Paul G. Mcattee | 34 | Head | Station Attendant | Indiana |
| 12 | Alta H. Mcattee | 31 | Wife | — | Illinois |
| 13 | Ronald P. Mcattee | 7 | Son | — | Indiana |
| 14 | Patty Ann Mcattee | 5 | Daughter | — | Indiana |
| 15 | Harry L. Propst | 49 | Head | Automobile Salesman | Missouri |
| 16 | Esther M. Propst | 30 | Wife | — | Indiana |
| 17 | Frank S. Dungan | 44 | Head | Bench Hand | Indiana |
| 18 | Sadie Dungan | 49 | Wife | — | Illinois |
| 19 | Irene B. Peasey | 42 | Head | Mail Clerk | Indiana |
| 20 | Carolyn E. Peasey | 19 | Daughter | Stenographer | Indiana |
| 21 | Fred D. Dirren | 40 | Head | Salesman | Indiana |
| 22 | Esther O. Dirren | 41 | Wife | — | Indiana |
| 23 | Frederick Dirren | 16 | Son | Delivery Boy | Indiana |
| 24 | Lawrence Wade | 41 | Head | Glazer | Indiana |
| 25 | Gladys Wade | 36 | Wife | — | Illinois |
| 26 | Marilyn M. Wade | 7 | Daughter | — | Indiana |
| 27 | Fred A. Lienhoop | 41 | Head | Caretaker | Indiana |
| 28 | Ruth Lienhoop | 40 | Wife | Saleslady | Indiana |
| 29 | Margaret Lienhoop | 16 | Daughter | — | Indiana |
| 30 | Patty Lou Lienhoop | 9 | Daughter | — | Indiana |
| 31 | John L. Gardner THIS PERSON | 29 | Head | Sales Dept. | Indiana |
| 32 | Vivian Gardner | 27 | Wife | — | Indiana |
| 33 | Shirley Ann Gardner | 4 | Daughter | — | Indiana |
| 34 | Jacquelyn Gardner | 3 | Daughter | — | Indiana |
| 35 | Lewis M. Woods | 29 | Head | Salesman | Indiana |
| 36 | Brenda M. Woods | 23 | Wife | — | Indiana |
| 37 | Lewis M. Jr. Woods | 3 | Son | — | Indiana |
| 38 | Frederick L. Woods | 2 | Son | — | Indiana |
| 39 | John J. Smith | 54 | Head | Plumber | Indiana |
| 40 | Alma L. Smith | 54 | Wife | — | Indiana |
Pedigree Summary
John
Gen 1 · 2 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)