LS
Louis Schmidt — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Polk-County, Iowa
Our Model Tree links this Louis Schmidt across the 1920, 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1886), then head of a 4-person household.
Age 54
b. ~1886
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Iowa |
| Surname | Schmidt |
| Given Name | Louis E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Additional Details | |
| Occupation | Installation |
| Industry | Telephone Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1565 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Installation |
| Township / Ward | Des Moines City |
| Est. Birth Year | ~1886 |
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 |
|---|---|---|---|---|
| Amy Schmidt | Spouse | — | 55 | ~1885 |
| Jacob Chiles | Other | — | 89 | ~1851 |
| Louis Schmidt | Head | — | 54 | ~1886 |
| George Schmidt | Son | — | 16 | ~1924 |
Census Appearances
1920
Polk, Iowa
Head, age 34
Polk, Iowa · implied b. ~1886 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmidt |
| Given Name | Louis G |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Germany |
| Mother's Birthplace | Iowa |
| Occupation | Installer |
| Industry | Telephone W |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Polk, Iowa
Head, age 44
Polk, Iowa · implied b. ~1886 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schmidt |
| Given Name | Louis E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 31 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Iowa |
| Occupation | foreman |
| Industry | telephone |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 45.00 |
| Radio Set | R |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Polk-County, Iowa
Head, age 54
Polk-County, Iowa · implied b. ~1886 — 4 household members
| Surname | Schmidt |
| Given Name | Louis E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Occupation | Installation |
| Industry | Telephone Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1565 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Schmidt across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Louis Schmidt
Head · 1940 · age 54 · b. ~1886 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Polk-County, Iowa
Open full size
1940 US Federal Census — Polk-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01193-00212)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Arley L. Hatfield | 50 | Head | Carpenter | Missouri |
| 2 | Crystal Hatfield | 38 | Wife | — | Iowa |
| 3 | Evelyn Myles | 62 | Cousin | — | Iowa |
| 4 | David C. Ehlert | 74 | Head | — | Pennsylvania |
| 5 | Anna M. Ehlert | 70 | Wife | — | Iowa |
| 6 | Louis E. Schmidt THIS PERSON | 54 | Head | Installation | Iowa |
| 7 | Amy M. Schmidt | 55 | Wife | — | Iowa |
| 8 | George C. Schmidt | 16 | Son | — | Iowa |
| 9 | Jacob S. Chiles | 89 | In-law | — | West Virginia |
| 10 | J. Rudolf Hansen | 35 | Head | Lawyer | Iowa |
| 11 | Levonallie Hansen | 33 | Wife | Secretary | Iowa |
| 12 | James Hawks | 41 | Head | Clerical | Iowa |
| 13 | Marie D. Hawks | 38 | Wife | — | Iowa |
| 14 | James Jr. Hawks | 17 | Son | — | Iowa |
| 15 | Barbara Hawks | 13 | Daughter | — | Iowa |
| 16 | Bruce S. Drossell | 51 | Head | Clerk | Illinois |
| 17 | Inez D. Drossell | 51 | Wife | — | Iowa |
| 18 | Wayne S. Drossell | 24 | Son | Clerk | Iowa |
| 19 | Vivian Drossell | 18 | Daughter | Clerk | Iowa |
| 20 | Naida Drossell | 10 | Daughter | — | Iowa |
| 21 | Milo Thornton | 45 | Head | Credit Manager | Iowa |
| 22 | Flo D. Thornton | 49 | Wife | — | Iowa |
| 23 | Jean Thornton | 19 | Daughter | — | Iowa |
| 24 | Richard Thornton | 18 | Son | — | Iowa |
| 25 | Dean H. Morton | 30 | Head | Salesman | Iowa |
| 26 | Helen E. Morton | 31 | Wife | Electrician | Iowa |
| 27 | Carl Todd | 68 | Head | Electrician | Iowa |
| 28 | Enore L. Todd | 68 | Wife | — | Iowa |
| 29 | Mary Jane Todd | 19 | Daughter | — | Iowa |
| 30 | John B. Mcmullen | 37 | Head | Accountant | Iowa |
| 31 | Ruth J. Mcmullen | 44 | Sister | Secretary | Iowa |
| 32 | Horace D. Towne | 72 | Head | — | Iowa |
| 33 | Jennie Towne | 70 | Wife | — | Iowa |
| 34 | Dorothy Towne | 43 | Daughter | Teacher | Iowa |
| 35 | Veta Strathers | 41 | Boarder | Registered Nurse | Iowa |
| 36 | William L. Heine | 58 | Head | Shipping Clerk | Iowa |
| 37 | Mary Heine | 52 | Wife | — | Pennsylvania |
| 38 | William Jr. Heine | 20 | Son | Truck Driver | Iowa |
| 39 | Donald Aschonty | 28 | Head | Truck Driver | Iowa |
| 40 | Imogene Aschonty | 29 | Wife | — | Iowa |
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)