MS
Mary Shaffer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Linn-County, Kansas
Our Model Tree links this Mary Shaffer across the 1930 and 1940 US Censuses in Linn-County, Kansas (XGBoost, ~Confirmed) — first a spouse (b.~1900), then head of a 9-person household.
Age 40
b. ~1900
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Linn-County, Kansas |
| Surname | Shaffer |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Linn |
| Additional Details | |
| Occupation | Housewife |
| Industry | Home |
| Class of Worker | NP |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Kansas |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Housewife |
| Township / Ward | Sheridan Twp |
| Est. Birth Year | ~1900 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Ina Shaffer | Daughter | — | 13 | ~1927 |
| Clarence Shaffer | Son | — | 16 | ~1924 |
| Robert Shaffer | Son | — | 10 | ~1930 |
| Allen Shaffer | Son | — | 20 | ~1920 |
| Mary Shaffer | Spouse | — | 40 | ~1900 |
| Betty Shaffer | Daughter | — | 5 | ~1935 |
| Chester Shaffer | Head | — | 46 | ~1894 |
| Vera Shaffer | Daughter | — | 3 | ~1937 |
| Keith Shaffer | Son | — | 18 | ~1922 |
Census Appearances
1930
Linn, Kansas
Other, age 30
Linn, Kansas · implied b. ~1900 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sheaffer |
| Given Name | Mary E |
| Relationship to Head | wife-H |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 16 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Linn-County, Kansas
Spouse, age 40
Linn-County, Kansas · implied b. ~1900 — 9 household members
| Surname | Shaffer |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Linn |
| Occupation | Housewife |
| Industry | Home |
| Class of Worker | NP |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Kansas |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Shaffer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Shaffer
Spouse · 1940 · age 40 · b. ~1900 · 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 — Linn-County, Kansas
Open full size
1940 US Federal Census — Linn-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01241-00584)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Fay | 62 | Wife | — | Iowa |
| 2 | Roy Dillie | 52 | Head | Farmer | Kansas |
| 3 | Rosa May Dillie | 56 | Wife | Housewife | Kansas |
| 4 | Russell Dillie | 17 | Son | — | Kansas |
| 5 | Lavern Milton | 30 | Head | Farmer | Kansas |
| 6 | Irene Milton | 31 | Wife | Housewife | Missouri |
| 7 | Amos Milton | 9 | Son | — | Missouri |
| 8 | Peggy Milton | 6 | Daughter | — | Kansas |
| 9 | J. H. Milton | 72 | Head | Farmer | Kansas |
| 10 | Ida May Milton | 69 | Wife | Housewife | Kansas |
| 11 | Chester Shaffer | 46 | Head | Truck Driver | Missouri |
| 12 | Mary Shaffer THIS PERSON | 40 | Wife | Housewife | Iowa |
| 13 | Allen Shaffer | 20 | Son | Truck Driver | Kansas |
| 14 | Keith Shaffer | 18 | Son | — | Kansas |
| 15 | Clarence Shaffer | 16 | Son | — | Kansas |
| 16 | Ina Shaffer | 13 | Daughter | — | Colorado |
| 17 | Robert Shaffer | 10 | Son | — | Kansas |
| 18 | Betty Shaffer | 5 | Daughter | — | Kansas |
| 19 | Vera Shaffer | 3 | Daughter | — | Kansas |
| 20 | Adam P. Johns | 39 | Head | Farmer | Kansas |
| 21 | Anna Johns | 41 | Wife | Housewife | Kansas |
| 22 | Harry Guthrie | 72 | Head | Farmer | Kansas |
| 23 | Alpha Guthrie | 42 | Wife | Housewife | Kansas |
| 24 | Earl Guthrie | 10 | Son | — | Kansas |
| 25 | Dale Guthrie | 8 | Son | — | Kansas |
| 26 | William Holeman | 36 | Head | Farmer | Kansas |
| 27 | Ella Holeman | 29 | Wife | Housewife | Kansas |
| 28 | Irene Holeman | 11 | Daughter | — | Kansas |
| 29 | Lorene Holeman | 9 | Daughter | — | Kansas |
| 30 | Lee Spruce | 61 | Head | Farmer | Kansas |
| 31 | Kate Spruce | 64 | Wife | Housewife | Michigan |
| 32 | G. B. Spruce | 84 | Father | Farmer | Illinois |
| 33 | Roy Maine | 45 | Head | Farmer | Kansas |
| 34 | Mabel Maine | 19 | Daughter | School Teacher | Kansas |
| 35 | Ed. Lowe | 53 | Head | Farmer | Kansas |
| 36 | Nell Lowe | 52 | Wife | Housewife | Wisconsin |
| 37 | Pearl Meech | 63 | Head | Housewife | Kansas |
| 38 | Emily Lounsbury | 72 | Head | Housewife | Australia |
| 39 | Roy Lounsbury | 44 | Son | Farmer | Kansas |
| 40 | Ralph Coon | 35 | Head | Farmer | 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)