LS
Leon Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Oakland-County, Michigan
Our Model Tree links this Leon Smith across the 1920, 1930 and 1940 US Censuses in Oakland-County, Michigan (XGBoost, ~Confirmed), with identified parents Millard & Millard — first a son (b.~1913), then head of a 4-person household.
Age 27
b. ~1913
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Oakland-County, Michigan |
| Surname | Smith |
| Given Name | Leon |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Pontiac City |
| 1935 Residence (County) | Oakland |
| Additional Details | |
| Occupation | Draftsman |
| Industry | automobile factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 162 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Draftsman |
| Township / Ward | Pontiac City |
| Est. Birth Year | ~1913 |
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 Leon | Age | Birth yr |
|---|---|---|---|---|
| Cora Clever | Other | — | 60 | ~1880 |
| Millard Smith | Head | — | 54 | ~1886 |
| Leon Smith | Son | — | 27 | ~1913 |
| Nellie Smith | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Oakland, Michigan
Son, age 7
Oakland, Michigan · implied b. ~1913 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Leon |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1930
Oakland, Michigan
Son, age 17
Oakland, Michigan · implied b. ~1913 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Leon |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Oakland-County, Michigan
Son, age 27
Oakland-County, Michigan · implied b. ~1913 — 4 household members
| Surname | Smith |
| Given Name | Leon |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Pontiac City |
| 1935 Residence (County) | Oakland |
| Occupation | Draftsman |
| Industry | automobile factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 162 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 Leon Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Millard Smith (~0.92 confidence) and father Millard Smith (~0.92 confidence) and father Willard Smith (~0.92 confidence) and mother Nellie Smith (~0.92 confidence) and mother Nellie Smith (~0.92 confidence) and mother Nettie Smith (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Millard Smith
b. ~1886
Source father
● Household
· direct · ~0.92
Father
Millard Smith
b. ~1886
Source father
● Household
· direct · ~0.92
Father
Willard Smith
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Nellie Smith
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Nellie Smith
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Nettie Smith
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Leon Smith
Son · 1940 · age 27 · b. ~1913 · Michigan
★ 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 — Oakland-County, Michigan
Open full size
1940 US Federal Census — Oakland-County, Michigan
Page Contents
37 people indexed on this census page (nara:1940:m-t0627-01801-00147)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lillian Marvin | 74 | Step-mother | — | New York |
| 42 | Lulu Litchfield | 52 | Servant | Private Room | Illinois |
| 43 | Thomas B. Asney | 41 | Head | Regulator | Michigan |
| 44 | Maude Asney | 40 | Wife | — | Michigan |
| 45 | Annette C. Asney | 15 | Daughter | — | Michigan |
| 46 | Avery Adele Asney | 60 | Mother | — | Michigan |
| 47 | William E. Newman | 40 | Head | — | Michigan |
| 48 | Donald C. Fraggle | 37 | Head | Lawyer | Illinois |
| 49 | Gwendolyn Fraggle | 33 | Wife | — | Michigan |
| 50 | Cora L. Dennis | 64 | Mother-in-law | — | Michigan |
| 51 | Elvin E. Halleen | 32 | Head | Trimmer | Tennessee |
| 52 | Amanda Halleen | 30 | Wife | — | Tennessee |
| 53 | Freddie M. Halleen | 14 | Daughter | — | Tennessee |
| 54 | John E. Crawford | 32 | Head | Civil Engineer | Michigan |
| 55 | Mabel Crawford | 28 | Wife | — | Michigan |
| 56 | David Crawford | 3 | Son | — | Michigan |
| 57 | Arthur Marsh | 17 | Son | News Boy | Michigan |
| 58 | Amelia Humbert | 60 | Head | — | Michigan |
| 59 | Marley J. Humbert | 38 | Son | Head Of Stock | Michigan |
| 60 | Lana Humbert | 24 | Daughter-in-law | Salesclerk | Indiana |
| 61 | Milton Kerr | 28 | Lodger | Attendant | Michigan |
| 62 | Thomas Lineque | 39 | Lodger | Salesman | Canada-Fr |
| 63 | Douglas Lundy | 25 | Lodger | Machinist | Michigan |
| 64 | Millard B. Smith | 54 | Head | Salesman | Michigan |
| 65 | Nellie R. Smith | 52 | Wife | — | Michigan |
| 66 | Leon Smith THIS PERSON | 27 | Son | Draftsman | Michigan |
| 67 | Cora Clever | 60 | Lodger | — | Canada-Eng |
| 68 | Thomas L. Marcum | 29 | Head | Electrician | W. Virginia |
| 69 | Rowena L. Marcum | 29 | Wife | Office Girl | Michigan |
| 70 | Joseph Madison | 48 | Head | Inspector | Michigan |
| 71 | Pearl D. Madison | 45 | Wife | — | Michigan |
| 72 | Vernon Madison | 24 | Son | Truck Driver | Michigan |
| 73 | L. Merle Brown | 48 | Head | Reading Teacher | Michigan |
| 74 | Ola B. Miller | 37 | Partner | English Teacher | Michigan |
| 75 | Harold F. Hall | 23 | Lodger | Laborer | Michigan |
| 76 | Nancy Lee Jenkins | 3 | Daughter | — | Michigan |
| 77 | Sharon Ann Jenkins | 1 | Daughter | — | Michigan |
Pedigree Summary
Leon
Gen 1 · 6 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)