LS
Louis Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Macomb-County, Michigan
Our Model Tree links this Louis Smith across the 1920, 1930 and 1940 US Censuses in Macomb-County, Michigan (XGBoost, ~Confirmed), with identified parents Joseph & Caroline — first a head (b.~1909), then head of a 4-person household.
Age 31
b. ~1909
Male
Head
Born: Michigan
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Macomb-County, Michigan |
| Surname | Smith |
| Given Name | Louis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Mt. Clemens |
| 1935 Residence (County) | Macomb |
| Additional Details | |
| Occupation | Labor |
| Industry | Foundry |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 988 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Occupation | Labor |
| Township / Ward | Mt Clemens |
| Est. Birth Year | ~1909 |
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 Louis | Age | Birth yr |
|---|---|---|---|---|
| Edna Smith | Daughter | — | 6 | ~1934 |
| Louis Smith | Head | — | 31 | ~1909 |
| Edward Smith | Son | — | 4 | ~1936 |
| Maydee Smith | Spouse | — | 29 | ~1911 |
Census Appearances
1920
Macomb, Michigan
Son, age 11
Macomb, Michigan · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Leo |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
Son, age 21
Macomb, Michigan · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Leo |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Michigan |
| Occupation | Laborer |
| Industry | Cartage Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Macomb-County, Michigan
Head, age 31
Macomb-County, Michigan · implied b. ~1909 — 4 household members
| Surname | Smith |
| Given Name | Louis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Michigan |
| 1935 Residence (City) | Mt. Clemens |
| 1935 Residence (County) | Macomb |
| Occupation | Labor |
| Industry | Foundry |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 988 |
| 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 Louis Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Joseph Smith (~0.92 confidence) and mother Caroline Smith (~0.92 confidence) and father Joseph Smith (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Joseph Smith
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Caroline Smith
b. ~1873
Source mother
● Household
· direct · ~0.92
Father
Joseph Smith
b. ~1878
Source father
● Household
· direct · ~0.92
This person
Anchor record
Louis Smith
Head · 1940 · age 31 · b. ~1909 · 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 — Macomb-County, Michigan
Open full size
1940 US Federal Census — Macomb-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01783-00855)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward Harrington | 24 | Head | Scrub Boy | Michigan |
| 2 | Patricia Harrington | 25 | Wife | — | Michigan |
| 3 | William Harrington | 2 | Son | — | Michigan |
| 4 | Louis Smith THIS PERSON | 31 | Head | Labor | Michigan |
| 5 | Maydee Smith | 29 | Wife | — | Michigan |
| 6 | Edna Jean Smith | 6 | Daughter | — | Michigan |
| 7 | Edward Smith | 4 | Son | — | Michigan |
| 8 | Edward Bellow | 61 | Head | — | Michigan |
| 9 | Doris Stringer | 32 | Daughter | Maid | Michigan |
| 10 | Harold Stringer | 12 | Lodger | Labor | Michigan |
| 11 | Henry J. Thomas | 51 | Head | Painter | Michigan |
| 12 | Rose Thomas | 50 | Wife | — | Michigan |
| 13 | Arthur Wonneberg | 39 | Head | Assemble | Michigan |
| 14 | Muriel Wonneberg | 36 | Wife | — | Michigan |
| 15 | Margaret Shay | 55 | Head | — | Michigan |
| 16 | Walter Shay | 34 | Son | Labor | Michigan |
| 17 | Grace Shay | 29 | Wife | — | Michigan |
| 18 | John Shay | 12 | Son | — | Michigan |
| 19 | William Shay | 11 | Son | — | Michigan |
| 20 | Florence Shay | 10 | Daughter | — | Michigan |
| 21 | Margaret Shay | 8 | Daughter | — | Michigan |
| 22 | Ellen Shay | 6 | Daughter | — | Michigan |
| 23 | Richard Shay | 4 | Son | — | Michigan |
| 24 | Ruth A. Shay | 3 | Daughter | — | Michigan |
| 25 | Jerald Shay | 2 | Son | — | Michigan |
| 26 | Floyd Shay | 1 | Son | Labor | Michigan |
| 27 | Albert Fortier | 26 | Head | — | Michigan |
| 28 | Elizth Corlett | 65 | Lodger | — | Michigan |
| 29 | Roy Corlett | 34 | Lodger | Labor | Michigan |
| 30 | Theodore Trombley | 51 | Head | Driver | Michigan |
| 31 | Adele Trombley | 46 | Wife | — | Michigan |
| 32 | Ruth Trombley | 25 | Daughter | Assemble | Michigan |
| 33 | Rose Trombley | 70 | Mother | — | Michigan |
| 34 | Carol J. Kraft | 5 | Lodger | — | Michigan |
| 35 | Keith D. Kraft | 3 | Lodger | — | Michigan |
| 36 | Henry T. Copp | 34 | Head | Carpenter | Michigan |
| 37 | Charles R. Copp | 12 | Son | — | Michigan |
| 38 | Dorothy Copp | 11 | Daughter | — | Michigan |
| 39 | Claire C. Copp | 10 | Daughter | — | Michigan |
| 40 | Ruth Copp | 7 | Daughter | — | Michigan |
Related Census Records
Pedigree Summary
Louis
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)