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Mary Olson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Oklahoma-County, Oklahoma
Our Model Tree links this Mary Olson across the 1930 and 1940 US Censuses in Oklahoma-County, Oklahoma (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 7-person household.
Age 13
b. ~1927
Female
Daughter
Born: Kansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Oklahoma-County, Oklahoma |
| Surname | Olson |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (County) | Oklahoma |
| Additional Details | |
| Highest Grade | G 7 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Township / Ward | Boone Township |
| Est. Birth Year | ~1927 |
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 |
|---|---|---|---|---|
| Donna Olson | Daughter | — | 5 | ~1935 |
| Anita Olson | Daughter | — | 11 | ~1929 |
| Mary Olson | Daughter | — | 13 | ~1927 |
| Lena Olson | Spouse | — | 43 | ~1897 |
| Carroll Olson | Son | — | 9 | ~1931 |
| Arthur Olson | Son | — | 16 | ~1924 |
| Arthur Olson | Head | — | 45 | ~1895 |
Census Appearances
1930
Oklahoma, Oklahoma
Daughter, age 3
Oklahoma, Oklahoma · implied b. ~1927 — 43 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Mary Marcene |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Oklahoma |
| Mother's Birthplace | Kansas |
| Occupation | none |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Oklahoma-County, Oklahoma
Daughter, age 13
Oklahoma-County, Oklahoma · implied b. ~1927 — 7 household members
| Surname | Olson |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (County) | Oklahoma |
| Highest Grade | G 7 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 Olson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Olson
Daughter · 1940 · age 13 · b. ~1927 · Oklahoma
★ You are viewing this record
Sibling
Anita Olson
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donna Olson
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carroll Olson
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Olson
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 — Oklahoma-County, Oklahoma
Open full size
1940 US Federal Census — Oklahoma-County, Oklahoma
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03317-00909)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Don Trippe | 14 | Son | — | Arkansas |
| 42 | Lillian Hubbard | 42 | Head | Cafe Operator | Texas |
| 43 | Joy Luella Hubbard | 17 | Daughter | Waitress | Kansas |
| 44 | Rosie Nichols | 72 | Mother | — | Tennessee |
| 45 | Jack H. Hart | 30 | Head | Barbering | Oklahoma |
| 46 | Ione Hart | 24 | Wife | — | Oklahoma |
| 47 | Jack Jr. Hart | 5 | Son | — | Oklahoma |
| 48 | Joe Thomas Hart | 1 | Daughter | — | Oklahoma |
| 49 | James Wilkinson | 57 | Head | Farming | Missouri |
| 50 | Irene Wilkinson | 32 | Wife | — | Oklahoma |
| 51 | Thelma Wilkinson | 9 | Daughter | — | Oklahoma |
| 52 | Arthur Olson | 45 | Head | Farming & Count Employe | Oklahoma |
| 53 | Lena Olson | 43 | Wife | — | Kansas |
| 54 | Arthur Jr. Olson | 16 | Son | — | Kansas |
| 55 | Mary M. Olson THIS PERSON | 13 | Daughter | — | Kansas |
| 56 | Anita C. Olson | 11 | Daughter | — | Kansas |
| 57 | Carroll D. Olson | 9 | Son | — | Oklahoma |
| 58 | Donna C. Olson | 5 | Daughter | — | Kansas |
| 59 | S. Siner Miller | 25 | Head | Labour | Oklahoma |
| 60 | Levina Miller | 23 | Wife | — | Oklahoma |
| 61 | Ed Lyons | 50 | Head | Laborer | Texas |
| 62 | Ibie Jarps | 30 | Head | — | Oklahoma |
| 63 | Inez Jarps | 27 | Wife | — | Oklahoma |
| 64 | Ouida Jarps | 3 | Daughter | — | Oklahoma |
| 65 | Lavon Jarps | 1 | Son | — | Oklahoma |
| 66 | James L. Andrews | 40 | Head | Labour | Oklahoma |
| 67 | Olia Andrews | 36 | Wife | Housework | Oklahoma |
| 68 | Mazone Andrews | 14 | Daughter | — | Oklahoma |
| 69 | Gwendolyn Andrews | 12 | Daughter | — | Oklahoma |
| 70 | James Jr. Andrews | 10 | Son | — | Oklahoma |
| 71 | Florence Andrews | 6 | Daughter | — | Oklahoma |
| 72 | Belvey Andrews | 3 | Daughter | — | Oklahoma |
| 73 | John Traylor | 25 | Head | Farm Laborer | Oklahoma |
| 74 | Lafayette H. Binney | 44 | Head | Baker & Farmer | Iowa |
| 75 | Floyd Binney | 41 | Wife | — | Oklahoma |
| 76 | Eugene Binney | 13 | Son | — | Oklahoma |
| 77 | Leslie C. Garrett | 33 | Head | Farming | Oklahoma |
| 78 | Jane Garrett | 28 | Wife | — | Texas |
| 79 | Billie Jo Garrett | 6 | Daughter | — | Oklahoma |
| 80 | Willie J. Young | 56 | Head | Farming | Kansas |
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)