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John Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Todd-County, Minnesota
Our Model Tree links this John Martin across the 1910, 1920, 1930 and 1940 US Censuses in Todd-County, Minnesota (XGBoost, ~Confirmed) — first a head (b.~1872), then head of a 3-person household.
Age 68
b. ~1872
Male
Head
Born: Minnesota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Todd-County, Minnesota |
| Surname | Martin |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 68 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Eagle Valley Twp |
| 1935 Residence (County) | Todd |
| Additional Details | |
| Class of Worker | OA |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Township / Ward | Eagle Valley Twp |
| Est. Birth Year | ~1872 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| John Martin | Head | — | 68 | ~1872 |
| Adolph Martin | Son | — | 24 | ~1916 |
| Bertha Martin | Spouse | — | 64 | ~1876 |
Census Appearances
1910
Todd, Minnesota
Head, age 36
Todd, Minnesota · implied b. ~1874 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Years Married | 10 |
| Father's Birthplace | Ger. German |
| Mother's Birthplace | Ger. German |
| Occupation | Farmer |
| Industry | General Farm |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1920
Todd, Minnesota
Head, age 47
Todd, Minnesota · implied b. ~1873 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Father's Birthplace | Germany |
| Mother's Birthplace | Ohio |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Todd, Minnesota
Head, age 58
Todd, Minnesota · implied b. ~1872 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Age at First Marriage | 26 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | O |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 2000 |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Todd-County, Minnesota
Head, age 68
Todd-County, Minnesota · implied b. ~1872 — 3 household members
| Surname | Martin |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 68 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Eagle Valley Twp |
| 1935 Residence (County) | Todd |
| Class of Worker | OA |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| 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 John Martin across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Martin
Head · 1940 · age 68 · b. ~1872 · Minnesota
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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 — Todd-County, Minnesota
Open full size
1940 US Federal Census — Todd-County, Minnesota
Page Contents
15 people indexed on this census page (nara:1940:m-t0627-01964-00222)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ethel Winquist | 22 | Head | Clerk | Minnesota |
| 42 | Vernon Winquist | 18 | Nephew | Laborer | Minnesota |
| 43 | Elmer Winquist | 17 | Nephew | Laborer | Minnesota |
| 44 | Chris B Rasmussen | 71 | Head | — | Denmark |
| 45 | Katie Rasmussen | 66 | Wife | — | Denmark |
| 46 | Hans Rasmussen | 44 | Son | Farmer | Minnesota |
| 47 | Grace Rasmussen | 34 | Daughter | — | Minnesota |
| 48 | Elmer Rasmussen | 33 | Son | Partner | Minnesota |
| 49 | Carl Rasmussen | 28 | Son | Partner | Minnesota |
| 50 | Harold Rasmussen | 26 | Son | Partner | Minnesota |
| 51 | Lizzie Palava | 62 | Head | Farmer | Minnesota |
| 52 | George Palava | 28 | Son | Laborer | Minnesota |
| 53 | John Martin THIS PERSON | 68 | Head | — | Minnesota |
| 54 | Bertha Martin | 64 | Wife | — | Germany |
| 55 | Adolph Martin | 24 | Son | Farmer | Minnesota |
Related Census Records
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)