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Robert Gardner — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this Robert Gardner across the 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed), with identified parents Roy & Roy — first a son (b.~1920), then head of a 3-person household.
Age 20
b. ~1920
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Gardner |
| Given Name | Robert E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Industry | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Indianapolis |
| Est. Birth Year | ~1920 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Ala Gardner | Spouse | — | 56 | ~1884 |
| Robert Gardner | Son | — | 20 | ~1920 |
| Roy Gardner | Head | — | 65 | ~1875 |
Census Appearances
1920
Marion, Indiana
Son, age
Marion, Indiana · implied b. ~1920 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gardner |
| Given Name | Robert E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Missouri |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Marion, Indiana
Son, age 10
Marion, Indiana · implied b. ~1920 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gardner |
| Given Name | Robert E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Marion-County, Indiana
Son, age 20
Marion-County, Indiana · implied b. ~1920 — 3 household members
| Surname | Gardner |
| Given Name | Robert E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Indianapolis |
| 1935 Residence (County) | Marion |
| Industry | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| 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 Robert Gardner across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Roy Gardner (~0.92 confidence) and father Roy Gardner (~0.92 confidence) and mother Ala Gardner (~0.92 confidence) and mother Ola Gardner (~0.92 confidence) and father Roy Gardner (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Roy Gardner
b. ~1875
Source father
● Household
· direct · ~0.92
Father
Roy Gardner
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Ala Gardner
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Ola Gardner
b. ~1886
Source mother
● Household
· direct · ~0.92
Father
Roy Gardner
b. ~1895
Source father
● Household
· direct · ~0.92
This person
Anchor record
Robert Gardner
Son · 1940 · age 20 · b. ~1920 · 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-t0627-01123-00189)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Iney | 39 | Wife | Factory Worker | Indiana |
| 42 | Charles R Iney | 17 | Son | — | Indiana |
| 43 | John R Iney | 13 | Son | — | Indiana |
| 44 | Charles L Iney | 46 | Brother | — | Kentucky |
| 45 | Dorothy Hunt | 34 | Head | General Office Work | Indiana |
| 46 | Heithem Ida | 77 | Lodger | — | Ohio |
| 47 | Shaw Marsh | 34 | Lodger | Knitter | Illinois |
| 48 | Beasley Lottie | 38 | Lodger | Secretary | Indiana |
| 49 | Roy A Gardner | 65 | Head | Telegraph Operator | Indiana |
| 50 | Ala V Gardner | 56 | Wife | — | Missouri |
| 51 | Robert E Gardner THIS PERSON | 20 | Son | — | Indiana |
| 52 | Carl Herzig | 50 | Head | Manufacture Jeweler | Indiana |
| 53 | Hazel Herzig | 39 | Wife | Seamstress | Illinois |
| 54 | Margaret Herzig | 19 | Daughter | — | Indiana |
| 55 | Carl Herzig | 17 | Son | — | Indiana |
| 56 | Ben Hicks | 24 | Head | Paper Hanger | Indiana |
| 57 | Clara Hicks | 28 | Wife | — | Illinois |
| 58 | Jackie Hicks | 4 | Son | — | Indiana |
| 59 | Charles Myer | 24 | Cousin | Operator | Indiana |
| 60 | Bess Myer | 28 | Cousin | — | Illinois |
| 61 | Arlene Myer | 1 | Cousin | — | Indiana |
| 62 | Carey S Frye | 70 | Head | Lawyer | Indiana |
| 63 | Leonore Frye | 61 | Wife | Research Clerk | Indiana |
| 64 | Carl E Crooke | 56 | Head | Buyer | Indiana |
| 65 | Lillian Crooke | 42 | Wife | — | Indiana |
| 66 | Larde May | 52 | Sister | — | Indiana |
| 67 | Mary Butler | 66 | Head | — | Indiana |
| 68 | Mildred Moynahan | 36 | Niece | Stenographer | Indiana |
| 69 | Frank Moynahan | 15 | Nephew | — | Indiana |
| 70 | Rose Marie Moynahan | 11 | Nephew | — | Indiana |
| 71 | Alfred Cole | 44 | Head | Truck Driver | Indiana |
| 72 | Millie Cole | 47 | Wife | — | Indiana |
| 73 | Helen Chatman | 16 | Daughter | — | Indiana |
| 74 | Clinton Hall | 33 | Head | Collector | Kentucky |
| 75 | Gertrude Hall | 33 | Wife | Stenographer | Indiana |
| 76 | Francis Faulkner | 65 | Head | Seamstress | Ireland |
| 77 | Curtis Ireland | 52 | Head | Steel Worker | Indiana |
| 78 | Mabel Ireland | 52 | Wife | — | Indiana |
| 79 | Mary Ireland | 30 | Daughter | — | Indiana |
| 80 | Clita B Ireland | 21 | Daughter | Machine Operator | Indiana |
Pedigree Summary
Robert
Gen 1 · 5 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)