MO
Mary Olson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allen-County, Kansas
Our Model Tree links this Mary Olson across the 1930 and 1940 US Censuses in Allen-County, Kansas (XGBoost, ~Confirmed) — first a spouse (b.~1896), then head of a 8-person household.
Age 44
b. ~1896
Female
Spouse
Born: Kansas
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allen-County, Kansas |
| Surname | Olson |
| Given Name | Mary M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | Humboldt Twp. |
| 1935 Residence (County) | Allen |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Township / Ward | Humboldt Twp |
| Est. Birth Year | ~1896 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Pete Olson | Other | — | 76 | ~1864 |
| Corrine Olson | Daughter | — | 22 | ~1918 |
| Mary Olson | Spouse | — | 44 | ~1896 |
| David Olson | Son | — | 19 | ~1921 |
| Harold Olson | Son | — | 12 | ~1928 |
| Lawrence Olson | Son | — | 15 | ~1925 |
| Carl Olson | Head | — | 46 | ~1894 |
| Paul Olson | Son | — | 6 | ~1934 |
Census Appearances
1930
Allen, Kansas
Other, age 34
Allen, Kansas · implied b. ~1896 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Olson |
| Given Name | Mary C |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Kansas |
| Age at First Marriage | 20 |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Allen-County, Kansas
Spouse, age 44
Allen-County, Kansas · implied b. ~1896 — 8 household members
| Surname | Olson |
| Given Name | Mary M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | Humboldt Twp. |
| 1935 Residence (County) | Allen |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 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
Spouse · 1940 · age 44 · b. ~1896 · Kansas
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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 — Allen-County, Kansas
Open full size
1940 US Federal Census — Allen-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01218-00213)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Carl A. Olson | 46 | Head | Pipe Liner | Kansas |
| 2 | Mary M. Olson THIS PERSON | 44 | Wife | — | Kansas |
| 3 | Corrine Olson | 22 | Daughter | Ticket Seller | Kansas |
| 4 | David J. Olson | 19 | Son | New Worker | Kansas |
| 5 | Lawrence E. Olson | 15 | Son | — | Kansas |
| 6 | Harold T. Olson | 12 | Son | — | Kansas |
| 7 | Paul L. Olson | 6 | Son | — | Kansas |
| 8 | Pete Olson | 76 | Father | — | Sweden |
| 9 | Eva M. Myers | 55 | Head | — | Iowa |
| 10 | Floyd A. Myers | 30 | Son | Clerk | Kansas |
| 11 | Frank R. Myers | 10 | Son | — | Kansas |
| 12 | Roy V. Myers | 24 | Head | Yard Man | Kansas |
| 13 | Allene E. Myers | 23 | Wife | — | Missouri |
| 14 | Alfred J. Myers | 34 | Head | Stone Mason | Illinois |
| 15 | Mabel L. Myers | 37 | Wife | — | Kansas |
| 16 | Doris I. Myers | 12 | Daughter | — | Kansas |
| 17 | Elvin W. Myers | 10 | Son | — | Kansas |
| 18 | Alfred J. Myers | 8 | Son | — | Colorado |
| 19 | Mary L. Myers | 7 | Daughter | — | Kansas |
| 20 | Arthur L. Myers | 4 | Son | — | Kansas |
| 21 | Peggie J. Myers | 2 | Daughter | — | Kansas |
| 22 | Corrine P. Myers | 0 | Daughter | — | Kansas |
| 23 | Walter H. Hulf | 40 | Head | Vice President | Kansas |
| 24 | May L. Hulf | 39 | Wife | — | Kansas |
| 25 | Betty Rose Hulf | 14 | Daughter | — | Kansas |
| 26 | Eileen M. Hulf | 10 | Daughter | — | Texas |
| 27 | Dolores M. Hulf | 1 | Daughter | — | Kansas |
| 28 | Marie Ladd | 26 | Servant | General Housework | Kansas |
| 29 | Edgar L. Burroughs | 40 | Head | Scale Man | Missouri |
| 30 | Velma E. Burroughs | 36 | Wife | — | Kansas |
| 31 | Gloria L. Burroughs | 14 | Daughter | — | Missouri |
| 32 | Virginia L. Burroughs | 12 | Daughter | — | Kansas |
| 33 | John H. Burroughs | 9 | Son | — | Missouri |
| 34 | Fred H. Rhodes | 71 | Head | President | Penna |
| 35 | Nellie G. Rhodes | 73 | Wife | — | Kansas |
| 36 | Chester D. Brooke | 58 | Head | Salesmanager | Missouri |
| 37 | Anna R. Brooke | 58 | Wife | — | Missouri |
| 38 | Barbara A. Brooke | 19 | Daughter | — | Missouri |
| 39 | Virginia M. Brooke | 12 | Daughter | — | Missouri |
| 40 | John D. Perrenoud | 61 | Head | Dairy Man | Missouri |
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)