AP
Alfred Peterson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Moody-County, South Dakota
Our Model Tree links this Alfred Peterson across the 1920, 1930 and 1940 US Censuses in Moody-County, South Dakota (XGBoost, ~Confirmed) — first a head (b.~1884), then head of a 4-person household.
Age 56
b. ~1884
Male
Head
Born: Denmark
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Moody-County, South Dakota |
| Surname | Peterson |
| Given Name | Alfred |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Denmark |
| 1935 Residence (City) | Blinsmon township |
| 1935 Residence (County) | Moody |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 72 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
| Occupation | Farmer |
| Township / Ward | Blinsmon Township |
| Est. Birth Year | ~1884 |
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 Alfred | Age | Birth yr |
|---|---|---|---|---|
| Reuben Peterson | Son | — | 25 | ~1915 |
| Melvin Peterson | Son | — | 26 | ~1914 |
| Alfred Peterson | Head | — | 56 | ~1884 |
| Caroline Peterson | Spouse | — | 52 | ~1888 |
Census Appearances
1920
Beadle, South …
Other, age 32
Beadle, South Dakota · implied b. ~1888 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Alfred T. |
| Relationship to Head | Son-in-law |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Denmark |
| Year of Immigration | 1901 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Farmer |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Danish |
| Birth Country | Denmark |
| Year of Naturalization | 1916 |
| Birthplace (normalized) | denmark |
1930
Moody, South …
Other, age 45
Moody, South Dakota · implied b. ~1885 — 20 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Peterson |
| Given Name | Alfred |
| Relationship to Head | O |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Denmark |
| Naturalization Status | Naturalized |
| Year of Immigration | 1901 |
| Age at First Marriage | 26 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | E |
| Can Read/Write | Yes |
| Mother Tongue | Danish |
| Radio Set | Yes |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
1940
Moody-County, South …
Head, age 56
Moody-County, South Dakota · implied b. ~1884 — 4 household members
| Surname | Peterson |
| Given Name | Alfred |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | Denmark |
| 1935 Residence (City) | Blinsmon township |
| 1935 Residence (County) | Moody |
| Naturalization Status | Naturalized |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 72 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
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 Alfred Peterson across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Alfred Peterson
Head · 1940 · age 56 · b. ~1884 · South Dakota
★ 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 — Moody-County, South Dakota
Open full size
1940 US Federal Census — Moody-County, South Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03865-00015)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Oliver P. Larson | 29 | Head | Farmer | Nebraska |
| 2 | John Dart | 39 | Hired hand | Farmer | Iowa |
| 3 | Verryl Dart | 19 | Hired hand | Housekeeper | South Dakota |
| 4 | Lawrence R. De Bruin | 27 | Head | Farmer | Iowa |
| 5 | Fern De Bruin | 26 | Wife | — | South Dakota |
| 6 | Laurity A. Larson | 51 | Head | Farmer | Denmark |
| 7 | Marie Larson | 47 | Wife | — | Denmark |
| 8 | Louis M. Larson | 16 | Son | — | South Dakota |
| 9 | Ivan A. Larson | 14 | Son | — | South Dakota |
| 10 | Edith N. Larson | 13 | Daughter | — | South Dakota |
| 11 | Otto Hoyer | 40 | Head | Farmer | Denmark |
| 12 | Mary K. Hoyer | 34 | Wife | — | Denmark |
| 13 | Myrtle M. Hoyer | 5 | Daughter | — | South Dakota |
| 14 | Marilyn M. Hoyer | 1 | Daughter | — | South Dakota |
| 15 | Peter Christiansen | 49 | Head | Farmer | Denmark |
| 16 | C. Florence Christiansen | 34 | Wife | — | South Dakota |
| 17 | Robert P. Christiansen | 9 | Son | — | South Dakota |
| 18 | Alfred Peterson THIS PERSON | 56 | Head | Farmer | Denmark |
| 19 | Caroline Peterson | 52 | Wife | — | South Dakota |
| 20 | Melvin Peterson | 26 | Son | Farmer | South Dakota |
| 21 | Reuben A. Peterson | 25 | Son | Waiter | South Dakota |
| 22 | Henry Mudder | 35 | Head | Farmer | Germany |
| 23 | Anna Mudder | 35 | Wife | — | Germany |
| 24 | Ralph Mudder | 6 | Son | — | South Dakota |
| 25 | Helen Mudder | 5 | Daughter | — | South Dakota |
| 26 | Henrietta Uhden | 74 | Mother-in-law | — | Germany |
| 27 | Adolph A. Johnson | 65 | Head | Farmer | Michigan |
| 28 | Frederick C. Johnson | 35 | Son | Farm Laborer | South Dakota |
| 29 | Leonard A. Johnson | 28 | Son | Rural Teacher | South Dakota |
| 30 | Curtis L. Hilland | 26 | Head | Farm Laborer | Nebraska |
| 31 | Ruth Hilland | 23 | Wife | — | Michigan |
| 32 | Maxine Hilland | 5 | Daughter | — | Nebraska |
| 33 | Marilyn Hilland | 3 | Daughter | — | Nebraska |
| 34 | La Monte Hilland | 1 | Son | — | Nebraska |
| 35 | Bertha Schroeder | 56 | Mother-in-law | Housework | Iowa |
| 36 | Paul Schroeder | 15 | Brother-in-law | — | Nebraska |
| 37 | Marie Jacobson | 55 | Head | — | Denmark |
| 38 | Howard C. Jacobson | 19 | Son | Farmer | Iowa |
| 39 | Marius Hansen | 50 | Brother | Farm Laborer | Denmark |
| 40 | Nels Sorenson | 40 | Head | Farmer | South Dakota |
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)