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Frank Peterson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cass-County, Minnesota
Our Model Tree links this Frank Peterson across the 1920, 1930 and 1940 US Censuses in Cass-County, Minnesota (XGBoost, ~Confirmed) — first a head (b.~1874), then head of a 6-person household.
Age 66
b. ~1874
Male
Head
Born: Sweden
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cass-County, Minnesota |
| Surname | Peterson |
| Given Name | Frank O. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Bungo |
| 1935 Residence (County) | Cass |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 70 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
| Occupation | Farmer |
| Township / Ward | Bungo |
| Est. Birth Year | ~1874 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Frank | Age | Birth yr |
|---|---|---|---|---|
| Vera Peterson | Daughter | — | 18 | ~1922 |
| Frank Peterson | Head | — | 66 | ~1874 |
| Martin Peterson | Son | — | 22 | ~1918 |
| Rudolph Peterson | Son | — | 26 | ~1914 |
| Thule Peterson | Son | — | 30 | ~1910 |
| Vilma Peterson | Spouse | — | 60 | ~1880 |
Census Appearances
1920
Cass, Minnesota
Head, age 46
Cass, Minnesota · implied b. ~1874 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Frank O. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Sweden |
| Year of Immigration | 1902 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Sweden |
| Year of Naturalization | 1906 |
| Birthplace (normalized) | sweden |
1930
Cass, Minnesota
Head, age 57
Cass, Minnesota · implied b. ~1873 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Frank A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Sweden |
| Naturalization Status | Naturalized |
| Year of Immigration | 1892 |
| Age at First Marriage | 30 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Farmer |
| Industry | Dairy Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | O |
| Radio Set | R |
| Veteran | No |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
Cass-County, Minnesota
Head, age 66
Cass-County, Minnesota · implied b. ~1874 — 6 household members
| Surname | Peterson |
| Given Name | Frank O. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | Bungo |
| 1935 Residence (County) | Cass |
| Naturalization Status | Naturalized |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 70 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
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 Frank Peterson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Frank Peterson
Head · 1940 · age 66 · b. ~1874 · 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 — Cass-County, Minnesota
Open full size
1940 US Federal Census — Cass-County, Minnesota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01912-00114)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Archie Okkenga | 29 | Head | Trapper | Iowa |
| 2 | Bertha Okkenga | 24 | Wife | Trapper | Iowa |
| 3 | Whipple Chamberlain | 27 | Head | Laborer | North Dakota |
| 4 | Freda Chamberlain | 23 | Wife | — | North Dakota |
| 5 | Billy Chamberlain | 3 | Son | — | North Dakota |
| 6 | Arlene Chamberlain | 1 | Daughter | — | North Dakota |
| 7 | Arthur Koppenberg | 37 | Head | Farmer | Minnesota |
| 8 | Lola Koppenberg | 33 | Wife | — | Minnesota |
| 9 | Thelma Koppenberg | 13 | Daughter | — | Minnesota |
| 10 | Jerome Koppenberg | 12 | Son | — | Minnesota |
| 11 | Samuel Koppenberg | 7 | Son | — | Minnesota |
| 12 | Nels P. Anderson | 74 | Head | Farmer | Denmark |
| 13 | Mary Anderson | 77 | Wife | — | Denmark |
| 14 | Frank O. Peterson THIS PERSON | 66 | Head | Farmer | Sweden |
| 15 | Vilma Peterson | 60 | Wife | — | Sweden |
| 16 | Thule Peterson | 30 | Son | Repairman | Minnesota |
| 17 | Rudolph Peterson | 26 | Son | Farmer | Minnesota |
| 18 | Martin Peterson | 22 | Son | Truck Driver | Minnesota |
| 19 | Vera Peterson | 18 | Daughter | — | Minnesota |
| 20 | Olaf J. Larson | 55 | Head | Farmer | Sweden |
| 21 | Selma Larson | 56 | Wife | — | Sweden |
| 22 | Marie Bergquist | 83 | Mother-in-law | — | Sweden |
| 23 | Julia Peterson | 58 | Head | — | Wisconsin |
| 24 | Ralph W. Peterson | 21 | Son | Farmer | Minnesota |
| 25 | Axel S. Blom | 63 | Head | Farmer | Sweden |
| 26 | Christine Blom | 52 | Wife | — | Norway |
| 27 | Phyllis Peterson | 10 | Niece | — | Minnesota |
| 28 | Elmer Bloom | 51 | Head | Farmer | Sweden |
| 29 | Anna Bloom | 44 | Wife | — | Sweden |
| 30 | Doris Bloom | 4 | Daughter | — | Minnesota |
| 31 | Carl Bloom | 2 | Son | — | Minnesota |
| 32 | Edith Bloom | 1 | Daughter | — | Minnesota |
| 33 | Victor Bergquist | 43 | Head | Farmer | Minnesota |
| 34 | Francis Bergquist | 32 | Wife | — | Minnesota |
| 35 | Ethel Bergquist | 9 | Daughter | — | Minnesota |
| 36 | Helen Bergquist | 8 | Daughter | — | Minnesota |
| 37 | Vivian Bergquist | 4 | Daughter | — | Minnesota |
| 38 | Gladys Bergquist | 2 | Daughter | — | Minnesota |
| 39 | Fridtjof Pederson | 40 | Lodger | Carpenter | Minnesota |
| 40 | Henry S. Folkers | 36 | Head | Farmer | Illinois |
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)