LS
Lydia Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hennepin-County, Minnesota
Our Model Tree links this Lydia Smith across the 1920, 1930 and 1940 US Censuses in Hennepin-County, Minnesota (XGBoost, ~Confirmed), with identified parents Mathew & Karl — first a daughter (b.~1911), then head of a 9-person household.
Age 29
b. ~1911
Female
Daughter
Born: Minnesota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hennepin-County, Minnesota |
| Surname | Smith |
| Given Name | Lydia |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Minneapolis city |
| 1935 Residence (County) | Hennepin |
| Additional Details | |
| Occupation | Sales clerk |
| Industry | Department store |
| Class of Worker | PW |
| Hours Worked | 4 |
| Income (1939) | 375 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Sales Clerk |
| Township / Ward | Minneapolis City |
| 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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Lydia | Age | Birth yr |
|---|---|---|---|---|
| Eleanore Smith | Daughter | — | 23 | ~1917 |
| Esther Smith | Daughter | — | 37 | ~1903 |
| Jacqueline Rosenthal | Daughter | — | 10 | ~1930 |
| May Smith | Daughter | — | 32 | ~1908 |
| Alice Smith | Daughter | — | 36 | ~1904 |
| Lydia Smith | Daughter | — | 29 | ~1911 |
| Alma Rosenthal | Daughter | — | 34 | ~1906 |
| Lillian Smith | Daughter | — | 31 | ~1909 |
| Ella Smith | Head | — | 63 | ~1877 |
Census Appearances
1920
Hennepin, Minnesota
Daughter, age 8
Hennepin, Minnesota · implied b. ~1912 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Lydia |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | none |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Hennepin, Minnesota
Daughter, age 19
Hennepin, Minnesota · implied b. ~1911 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Lydia |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Minnesota |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | Sales clerk |
| Industry | Wholesale drug |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Hennepin-County, Minnesota
Daughter, age 29
Hennepin-County, Minnesota · implied b. ~1911 — 9 household members
| Surname | Smith |
| Given Name | Lydia |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Minnesota |
| 1935 Residence (City) | Minneapolis city |
| 1935 Residence (County) | Hennepin |
| Occupation | Sales clerk |
| Industry | Department store |
| Class of Worker | PW |
| Hours Worked | 4 |
| Income (1939) | 375 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Lydia Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Mathew Smith (~0.92 confidence) and father Karl Smith (~0.92 confidence) and mother Ella Smith (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Mathew Smith
b. ~1863
Source father
● Household
· direct · ~0.92
Father
Karl Smith
b. ~1865
Source father
● Household
· direct · ~0.92
Mother
Ella Smith
b. ~1874
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Lydia Smith
Daughter · 1940 · age 29 · b. ~1911 · Minnesota
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Sibling
Lillian Smith
Sibling · 1940 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Esther Smith
Sibling · 1940 · age 37
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleanore Smith
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
May Smith
Sibling · 1940 · age 32
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Smith
Sibling · 1940 · age 36
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jacqueline Rosenthal
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alma Rosenthal
Sibling · 1940 · age 34
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 — Hennepin-County, Minnesota
Open full size
1940 US Federal Census — Hennepin-County, Minnesota
Page Contents
37 people indexed on this census page (nara:1940:m-t0627-01978-00108)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Robert W. Kohonen | 29 | Head | Jewelry | Minnesota |
| 2 | Alma Kohonen | 28 | Wife | Stenographer | Minnesota |
| 5 | Charles A. Kohout | 62 | Head | Field Agent | Nebraska |
| 6 | Jessie Kohout | 55 | Wife | — | Iowa |
| 7 | Duane Kohout | 24 | Son | Stock Clerk | Minnesota |
| 8 | Robert A. Kohout | 20 | Son | Printer | Minnesota |
| 9 | Arlein Kohout | 19 | Daughter | Sales Clerk | Minnesota |
| 10 | Laverne Kohout | 17 | Daughter | Office Clerk | Minnesota |
| 11 | Ella R. Smith | 63 | Head | — | Finland |
| 12 | Esther Smith | 37 | Daughter | — | Illinois |
| 13 | Alice Smith | 36 | Daughter | Folder | Minnesota |
| 14 | May Smith | 32 | Daughter | Folder | Minnesota |
| 15 | Lillian Smith | 31 | Daughter | Tailoring | Minnesota |
| 16 | Lydia Smith THIS PERSON | 29 | Daughter | Sales Clerk | Minnesota |
| 17 | Eleanore Smith | 23 | Daughter | Stenographer | Minnesota |
| 18 | Alma Rosenthal | 34 | Daughter | Tailoring | Minnesota |
| 19 | Jacqueline Rosenthal | 10 | Daughter | — | Minnesota |
| 20 | Henry Buranen | 44 | Head | Attendant | Minnesota |
| 21 | Florence Buranen | 34 | Wife | — | Minnesota |
| 22 | Mary Lou Buranen | 13 | Daughter | — | Minnesota |
| 23 | Audrey Buranen | 6 | Daughter | — | Minnesota |
| 24 | Robert Buranen | 3 | Son | — | Minnesota |
| 25 | Josephine Landberg | 66 | Head | — | Norway |
| 26 | Edward W. Haney | 43 | Head | Expressman | Minnesota |
| 27 | Signe Haney | 48 | Wife | — | Finland |
| 28 | Marcetta Mason | 16 | Daughter | — | Minnesota |
| 29 | William H. Moser | 26 | Head | Milkman | Minnesota |
| 30 | Geraldine Moser | 24 | Wife | — | Minnesota |
| 31 | Robert L. Hurst | 28 | Head | Office Clerk | Michigan |
| 32 | Ruby D. Hurst | 26 | Wife | — | Minnesota |
| 34 | Susana Field | 68 | Head | — | Minnesota |
| 35 | Andrew Proels | 38 | Lodger | Squad Captain | Minnesota |
| 36 | Evert Mikkola | 57 | Head | Laborer | Finland |
| 37 | Jennie Mikkola | 56 | Wife | — | Finland |
| 38 | Edwin Mikkola | 25 | Son | Machine Shop Operator | Minnesota |
| 39 | John A. Hartman | 46 | Head | Mechanic | Finland |
| 40 | Alma Hartman | 42 | Wife | Machine Operator | Finland |
Pedigree Summary
Lydia + 7 siblings
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)