RA
Rose Anderson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Day-County, South Dakota
Our Model Tree links this Rose Anderson across the 1930 and 1940 US Censuses in Day-County, South Dakota (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 6-person household.
Age 15
b. ~1925
Female
Daughter
Born: South Dakota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Day-County, South Dakota |
| Surname | Anderson |
| Given Name | Rose |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | South Dakota |
| 1935 Residence (City) | Pierpont town |
| 1935 Residence (County) | Day |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
| Township / Ward | Pierpont Town |
| Est. Birth Year | ~1925 |
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 Rose | Age | Birth yr |
|---|---|---|---|---|
| August Anderson | Head | — | 60 | ~1880 |
| Merlin Anderson | Son | — | 22 | ~1918 |
| Leone Anderson | Daughter | — | 16 | ~1924 |
| Rose Anderson | Daughter | — | 15 | ~1925 |
| Ray Anderson | Son | — | 17 | ~1923 |
| Clara Anderson | Spouse | — | 56 | ~1884 |
Census Appearances
1930
Day, South …
Daughter, age 5
Day, South Dakota · implied b. ~1925 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Andersen |
| Given Name | Rose |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | Norway |
| Mother's Birthplace | South Dakota |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1940
Day-County, South …
Daughter, age 15
Day-County, South Dakota · implied b. ~1925 — 6 household members
| Surname | Anderson |
| Given Name | Rose |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | South Dakota |
| 1935 Residence (City) | Pierpont town |
| 1935 Residence (County) | Day |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
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 Rose Anderson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Rose Anderson
Daughter · 1940 · age 15 · b. ~1925 · South Dakota
★ You are viewing this record
Sibling
Merlin Anderson
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ray Anderson
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leone Anderson
Sibling · 1940 · age 16
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 — Day-County, South Dakota
Open full size
1940 US Federal Census — Day-County, South Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03854-00234)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Johanna Mysen | 64 | Wife | — | Norway |
| 2 | Marion Mysen | 24 | Daughter | — | Norway |
| 3 | August W. Anderson | 60 | Head | Section Foreman | Norway |
| 4 | Clara O. Anderson | 56 | Wife | — | South Dakota |
| 5 | Merlin Anderson | 22 | Son | Section Laborer | South Dakota |
| 6 | Ray Anderson | 17 | Son | — | South Dakota |
| 7 | Leone Anderson | 16 | Daughter | — | South Dakota |
| 8 | Rose Anderson THIS PERSON | 15 | Daughter | — | South Dakota |
| 9 | Frank Harder | 53 | Head | Mail Carrier | Iowa |
| 10 | Anna Harder | 53 | Wife | Seamstress | South Dakota |
| 11 | Ramona Harder | 11 | Daughter | — | South Dakota |
| 12 | Bonnie Harder | 8 | Daughter | — | South Dakota |
| 13 | Arvid Mortenson | 20 | Nephew | Deliveryman | North Dakota |
| 14 | Einar Norland | 31 | Head | Laborer | Norway |
| 15 | Violet Norland | 25 | Wife | — | South Dakota |
| 16 | Infant Norland | 0 | Son | — | South Dakota |
| 17 | Hugo A. Paulson | 40 | Head | Owner-Manager | Sweden |
| 18 | Gena S. Paulson | 39 | Wife | — | South Dakota |
| 19 | Richard Paulson | 7 | Son | — | South Dakota |
| 20 | Helen Estwick | 25 | Lodger | Sales-Woman | South Dakota |
| 21 | Irene O. Parrott | 61 | Head | — | Minnesota |
| 22 | Wendell Parrott | 33 | Son | General Laborer | South Dakota |
| 23 | Sadie A. Folsom | 60 | Head | Dormitory Dean | Illinois |
| 24 | Hans Roitvoam | 89 | Head | — | Norway |
| 25 | Helen Roitvoam | 81 | Wife | — | Norway |
| 26 | Andrew Olsen | 39 | Head | Laborer | South Dakota |
| 27 | Elvira D. Olsen | 32 | Wife | — | South Dakota |
| 28 | James Olsen | 11 | Son | — | South Dakota |
| 29 | Faye Olsen | 9 | Daughter | — | South Dakota |
| 30 | Douglas Olsen | 6 | Son | — | South Dakota |
| 31 | George R. Roberts | 50 | Head | Chicken Raiser | South Dakota |
| 32 | Mable Roberts | 53 | Wife | — | Minnesota |
| 33 | Franklin B. Martin | 87 | Head | — | Indiana |
| 34 | Frank Copper | 55 | Son-in-law | Automotive Accessories | South Dakota |
| 35 | Myrtle Copper | 54 | Daughter | — | South Dakota |
| 36 | Elmer G. Altum | 58 | Head | Marshall & City Engineer | Wisconsin |
| 37 | Rozilla Altum | 46 | Wife | — | South Dakota |
| 38 | E. George Altum | 19 | Son | Postal Clerk | South Dakota |
| 39 | Joseph P. Baillie | 52 | Head | — | South Dakota |
| 40 | Nettie S. Baillie | 50 | Wife | Seamstress | South Dakota |
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)