ME
Mary Erickson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Roberts-County, South Dakota
Our Model Tree links this Mary Erickson across the 1920, 1930 and 1940 US Censuses in Roberts-County, South Dakota (XGBoost, ~Confirmed) — first a spouse (b.~1867), then head of a 5-person household.
Age 73
b. ~1867
Female
Spouse
Born: Norway
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Roberts-County, South Dakota |
| Surname | Erickson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 73 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | Sisseton city |
| 1935 Residence (County) | Roberts |
| Naturalization Status | Naturalized |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
| Township / Ward | Sisseton City |
| Est. Birth Year | ~1867 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Andrew Erickson | Head | — | 75 | ~1865 |
| Mildred Erickson | Daughter | — | 33 | ~1907 |
| Mary Erickson | Spouse | — | 73 | ~1867 |
| Claner Erickson | Son | — | 38 | ~1902 |
| Harry Erickson | Son | — | 27 | ~1913 |
Census Appearances
1920
Roberts, South …
Spouse, age 52
Roberts, South Dakota · implied b. ~1868 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Erickson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Norway |
| Year of Immigration | 1870 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Birth Country | Norway |
| Year of Naturalization | 1889 |
| Birthplace (normalized) | norway |
1930
Roberts, South …
Spouse, age 63
Roberts, South Dakota · implied b. ~1867 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Erickson |
| Given Name | Marie |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Norway |
| Naturalization Status | Naturalized |
| Year of Immigration | 1870 |
| Age at First Marriage | 23 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | Norwegian |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
1940
Roberts-County, South …
Spouse, age 73
Roberts-County, South Dakota · implied b. ~1867 — 5 household members
| Surname | Erickson |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 73 |
| Marital Status | Married |
| Birthplace | Norway |
| 1935 Residence (City) | Sisseton city |
| 1935 Residence (County) | Roberts |
| Naturalization Status | Naturalized |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Norway |
| Birthplace (normalized) | norway |
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 Mary Erickson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Erickson
Spouse · 1940 · age 73 · b. ~1867 · South Dakota
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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 — Roberts-County, South Dakota
Open full size
1940 US Federal Census — Roberts-County, South Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03866-00887)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Richard S. Contal | 7 | Son | — | South Dakota |
| 2 | Edgar Babb | 71 | Head | — | Minnesota |
| 3 | Carlena Babb | 64 | Wife | — | Wisconsin |
| 4 | Edna Babb | 25 | Daughter | — | Canada |
| 5 | Al. Oliver | 62 | Head | — | Wisconsin |
| 6 | Eleanor Oliver | 52 | Wife | — | Minnesota |
| 7 | Patricia Oliver | 12 | Daughter | — | Minnesota |
| 8 | Emma Mindt | 33 | Head | Wpa Cutter | North Dakota |
| 9 | Donald Mindt | 15 | Son | — | North Dakota |
| 10 | June Mindt | 13 | Daughter | — | North Dakota |
| 11 | Almond Mindt | 11 | Son | — | North Dakota |
| 12 | Martin Schneier | 59 | Head | Common Labor | South Dakota |
| 13 | Catherine Schneier | 54 | Wife | — | South Dakota |
| 14 | Catherine Schneier | 24 | Daughter | — | South Dakota |
| 15 | Violet Schneier | 28 | Daughter | — | South Dakota |
| 16 | Arlene Schneier | 13 | Daughter | — | South Dakota |
| 17 | Dorothy Rhodes | 19 | Daughter | Housework | South Dakota |
| 18 | Edward Erickson | 52 | Head | Janitor | Wisconsin |
| 19 | Elizabeth Erickson | 53 | Wife | — | North Dakota |
| 20 | Viola Erickson | 19 | Daughter | Seamstress | North Dakota |
| 21 | Leonard Hansen | 51 | Head | Common Labor | Wisconsin |
| 22 | Olga Hansen | 43 | Wife | — | South Dakota |
| 23 | Sylvia (At) Hansen | 20 | Daughter | — | South Dakota |
| 24 | Edith Hansen | 14 | Daughter | — | South Dakota |
| 25 | Joe Hansen | 11 | Son | — | South Dakota |
| 26 | Jack B. Ackerman | 44 | Head | Manager | Minnesota |
| 27 | Margaret Ackerman | 21 | Daughter | — | South Dakota |
| 28 | John Jr. Ackerman | 19 | Son | Apprentice Electrician | South Dakota |
| 29 | Virginia Jarl | 24 | Head | Stenographer | Minnesota |
| 30 | Marcella Graber | 26 | Partner | Clerk | South Dakota |
| 31 | Paul Casanova | 22 | Head | Salesman | South Dakota |
| 32 | Frances Casanova | 26 | Wife | — | North Dakota |
| 33 | Andrew Erickson | 75 | Head | — | Norway |
| 34 | Mary Erickson THIS PERSON | 73 | Wife | — | Norway |
| 35 | Claner Erickson | 38 | Son | Manager | South Dakota |
| 36 | Mildred Erickson | 33 | Daughter | Telephone Operator | South Dakota |
| 37 | Harry Erickson | 27 | Son | Assistant Manager | South Dakota |
| 38 | Christ Christensen | 74 | Head | Manager | Denmark |
| 39 | Margaret Christensen | 72 | Wife | — | Norway |
| 40 | Joe Longaker | 50 | Head | Manager | 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)