LS
Leonard Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Montgomery-County, Indiana
Our Model Tree links this Leonard Smith across the 1920, 1930 and 1940 US Censuses in Montgomery-County, Indiana (XGBoost, ~Confirmed), with identified parents Orla & Fritz — first a son (b.~1912), then head of a 3-person household.
Age 28
b. ~1912
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Montgomery-County, Indiana |
| Surname | Smith |
| Given Name | Leonard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Union Township |
| 1935 Residence (County) | Montgomery |
| Additional Details | |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 601 |
| Highest Grade | C 4 |
| 1935 Residence | Same House |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Teacher |
| Township / Ward | Union Township |
| Est. Birth Year | ~1912 |
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 Leonard | Age | Birth yr |
|---|---|---|---|---|
| Effie Smith | Head | — | 62 | ~1878 |
| Leonard Smith | Son | — | 28 | ~1912 |
| Kyle Smith | Son | — | 30 | ~1910 |
Census Appearances
1920
Montgomery, Indiana
Son, age 7
Montgomery, Indiana · implied b. ~1913 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Leonard |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | none |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Montgomery, Indiana
Son, age 18
Montgomery, Indiana · implied b. ~1912 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Lenord |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Montgomery-County, Indiana
Son, age 28
Montgomery-County, Indiana · implied b. ~1912 — 3 household members
| Surname | Smith |
| Given Name | Leonard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Union Township |
| 1935 Residence (County) | Montgomery |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 601 |
| Highest Grade | C 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 Leonard Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Orla Smith (~0.92 confidence) and father Fritz Smith (~0.92 confidence) and mother Effie Smith (~0.92 confidence) and mother Effie Smith (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Orla Smith
b. ~1874
Source father
● Household
· direct · ~0.92
Father
Fritz Smith
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Effie Smith
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Effie Smith
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Leonard Smith
Son · 1940 · age 28 · b. ~1912 · Indiana
★ You are viewing this record
Sibling
Kyle Smith
Sibling · 1940 · age 30
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 — Montgomery-County, Indiana
Open full size
1940 US Federal Census — Montgomery-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01080-00698)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary Margaret Cowan | 26 | Wife | — | Indiana |
| 42 | Marlene Cowan | 6 | Daughter | — | Indiana |
| 43 | Zella X Snyder | 54 | Head | — | Indiana |
| 44 | John Davis | 59 | Head | Laborer | Indiana |
| 45 | Mary X Davis | 56 | Wife | — | Indiana |
| 46 | Mary X Taylor | 44 | Head | — | Kentucky |
| 47 | Bernice Taylor | 21 | Daughter | Secretary | Indiana |
| 48 | Charles Taylor | 20 | Son | Laborer | Indiana |
| 49 | Katherine Taylor | 14 | Daughter | — | Indiana |
| 50 | Frank Mahan | 70 | Head | — | Indiana |
| 51 | C Raymond Mahan | 40 | Son | Barber | Indiana |
| 52 | Rosalynde Mahan | 38 | Daughter-in-law | — | Indiana |
| 53 | Rosalynde Marie Mahan | 18 | Granddaughter | — | Indiana |
| 54 | Daniel James Mahan | 2 | Grandson | — | Indiana |
| 55 | Walter B Mulligan | 54 | Head | Dairyman | Indiana |
| 56 | Ruth N Mulligan | 41 | Wife | Florist Designer | Indiana |
| 57 | Betty Martha Fletcher | 17 | Stepdaughter | — | Indiana |
| 58 | Charles Gruenefelter | 64 | Head | Salesman | Illinois |
| 59 | Anna Gruenefelter | 50 | Wife | — | Texas |
| 60 | Effie X Smith | 62 | Head | — | Indiana |
| 61 | Kyle Smith | 30 | Son | Laborer | Indiana |
| 62 | Leonard Smith THIS PERSON | 28 | Son | Teacher | Indiana |
| 63 | Roland E Schleppy | 81 | Head | Laborer | Ohio |
| 64 | Myrtle X Schleppy | 67 | Wife | — | Indiana |
| 65 | Clifford Meadows | 19 | Lodger | Laborer | West Virginia |
| 66 | David Kincaid | 12 | Grandson | — | Indiana |
| 67 | Walter Cox | 63 | Head | Laborer | Indiana |
| 68 | Clara X Cox | 57 | Wife | — | Indiana |
| 69 | Ray A Marlow | 26 | Farm Hand | Laborer | Illinois |
| 70 | Flora Faye Marlow | 19 | Housekeeper | Housekeeper | Illinois |
| 71 | Grover Harshbarger | 47 | Head | Laborer | Indiana |
| 72 | Marie Harshbarger | 45 | Wife | — | Indiana |
| 73 | Warren Lee Harshbarger | 21 | Son | Sign Dept Laborer | Indiana |
| 74 | Richard G Harshbarger | 14 | Son | — | Indiana |
| 75 | Chelsey A X Patton | 49 | Head | Laborer | Indiana |
| 76 | Edna Patton | 47 | Wife | — | Kansas |
| 77 | Clyde Patton | 20 | Son | Laborer | Indiana |
| 78 | Imogene Patton | 10 | Daughter | — | Indiana |
| 79 | Lloyd Harshbarger | 41 | Head | Laborer | Indiana |
| 80 | Opal X Harshbarger | 38 | Wife | — | Indiana |
Pedigree Summary
Leonard + 1 sibling
Gen 1 · 4 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)