MP
Mary Parsons — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Pennington-County, South Dakota
Our Model Tree links this Mary Parsons across the 1930 and 1940 US Censuses in Pennington-County, South Dakota (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 7-person household.
Age 10
b. ~1930
Female
Daughter
Born: South Dakota
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Pennington-County, South Dakota |
| Surname | Parsons |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | South Dakota |
| 1935 Residence (City) | Rapid City |
| 1935 Residence (County) | Pennington |
| Additional Details | |
| Highest Grade | 4 |
| 1935 Residence | Same place |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
| Township / Ward | Rapid City |
| Est. Birth Year | ~1930 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| George Parsons | Son | — | 13 | ~1927 |
| Betty Parsons | Daughter | — | 12 | ~1928 |
| Myrtle Parsons | Spouse | — | 32 | ~1908 |
| Joann Parsons | Daughter | — | 7 | ~1933 |
| Mary Parsons | Daughter | — | 10 | ~1930 |
| Charles Parsons | Head | — | 54 | ~1886 |
| Jennie Parsons | Daughter | — | 5 | ~1935 |
Census Appearances
1930
Pennington, South …
Daughter, age 1
Pennington, South Dakota · implied b. ~1929 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Parsons |
| Given Name | Mary C. |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | South Dakota |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Birth State | South Dakota |
| Birth Country | United States |
| Birthplace (normalized) | south dakota |
1940
Pennington-County, South …
Daughter, age 10
Pennington-County, South Dakota · implied b. ~1930 — 7 household members
| Surname | Parsons |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | South Dakota |
| 1935 Residence (City) | Rapid City |
| 1935 Residence (County) | Pennington |
| Highest Grade | 4 |
| 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 Mary Parsons across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Parsons
Daughter · 1940 · age 10 · b. ~1930 · South Dakota
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Sibling
George Parsons
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jennie Parsons
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Parsons
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joann Parsons
Sibling · 1940 · age 7
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 — Pennington-County, South Dakota
Open full size
1940 US Federal Census — Pennington-County, South Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03865-00522)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Anne Mceachron | 36 | Wife | — | Wisconsin |
| 2 | Laurence Mceachron | 18 | Son | — | South Dakota |
| 3 | Jane Mceachron | 8 | Daughter | — | South Dakota |
| 4 | George Steinbourgh | 56 | Head | Deputy Sheriff | South Dakota |
| 5 | Blanche Steinbourgh | 51 | Wife | — | Kansas |
| 6 | Jess Steinbourgh | 17 | Daughter | Stenographer | South Dakota |
| 7 | Wesley Steinbourgh | 16 | Son | — | South Dakota |
| 8 | Bess Steinbourgh | 14 | Daughter | — | South Dakota |
| 9 | Robert Simpson | 57 | Head | Postal Clerk | Illinois |
| 10 | Pearl Simpson | 51 | Wife | — | Arkansas |
| 11 | Robert Simpson | 13 | Son | — | South Dakota |
| 12 | Helen Simpson | 11 | Daughter | — | South Dakota |
| 13 | Ralph Colvin | 40 | Head | Station Agent | South Dakota |
| 14 | Lucille Colvin | 34 | Wife | — | Iowa |
| 15 | Richard Colvin | 9 | Son | — | Iowa |
| 16 | Noelle Colvin | 8 | Daughter | — | Iowa |
| 17 | Ernest E. Linde | 61 | Head | Laborer | Germany |
| 18 | Minnie Linde | 58 | Wife | — | Germany |
| 19 | Lucille Linde | 22 | Daughter | Waitress | Minnesota |
| 20 | Dorothy Linde | 15 | Daughter | — | Washington |
| 21 | Dr. Fred Bestgen | 42 | Head | Director | Missouri |
| 22 | Barbara Bestgen | 37 | Wife | — | Nebraska |
| 23 | Marion Bestgen | 13 | Daughter | — | Nebraska |
| 24 | Robert Bestgen | 12 | Son | — | Nebraska |
| 25 | Elwin Hoff | 33 | Head | Chiropractor Doctor | South Dakota |
| 26 | Esther Hoff | 24 | Wife | — | South Dakota |
| 27 | Kay Hoff | 1 | Daughter | — | South Dakota |
| 28 | Jandie Caraney | 41 | Head | Cook | Minnesota |
| 29 | Clarence Caraney | 18 | Son | — | South Dakota |
| 30 | Lois Mae Caraney | 10 | Daughter | — | South Dakota |
| 31 | Charles Parsons | 54 | Head | Carpenter | South Dakota |
| 32 | Myrtle Parsons | 32 | Wife | — | South Dakota |
| 33 | George Parsons | 13 | Son | — | South Dakota |
| 34 | Betty Parsons | 12 | Daughter | — | South Dakota |
| 35 | Mary Parsons THIS PERSON | 10 | Daughter | — | South Dakota |
| 36 | Joann Parsons | 7 | Daughter | — | South Dakota |
| 37 | Jennie Parsons | 5 | Daughter | — | South Dakota |
| 38 | Glenn Wilson | 29 | Head | Salesman | Minnesota |
| 39 | Idris Wilson | 30 | Wife | — | South Dakota |
| 40 | Alden Wilson | 4 | Son | — | 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)