MS
Mary Shaffer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Coffey-County, Kansas
Our Model Tree links this Mary Shaffer across the 1930 and 1940 US Censuses in Coffey-County, Kansas (XGBoost, ~Confirmed) — first a spouse (b.~1899), then head of a 8-person household.
Age 41
b. ~1899
Female
Spouse
Born: Kansas
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Coffey-County, Kansas |
| Surname | Shaffer |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Lyon |
| Additional Details | |
| Highest Grade | 8 |
| 1935 Residence | Kansas |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Township / Ward | Liberty Twp |
| Est. Birth Year | ~1899 |
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 |
|---|---|---|---|---|
| Arnold Shaffer | Son | — | 16 | ~1924 |
| Harley Shaffer | Son | — | 19 | ~1921 |
| Mary Shaffer | Daughter | — | 3 | ~1937 |
| Retha Shaffer | Daughter | — | 5 | ~1935 |
| Isaac Shaffer | Head | — | 44 | ~1896 |
| Mary Shaffer | Spouse | — | 41 | ~1899 |
| Lucille Shaffer | Daughter | — | 7 | ~1933 |
| Fredia Shaffer | Daughter | — | 14 | ~1926 |
Census Appearances
1930
Coffey, Kansas
Spouse, age 31
Coffey, Kansas · implied b. ~1899 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Shaffer |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Kansas |
| Age at First Marriage | 21 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Germany |
| Can Read/Write | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Coffey-County, Kansas
Spouse, age 41
Coffey-County, Kansas · implied b. ~1899 — 8 household members
| Surname | Shaffer |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Kansas |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Lyon |
| Highest Grade | 8 |
| 1935 Residence | Kansas |
| 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 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 41 · b. ~1899 · 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 — Coffey-County, Kansas
Open full size
1940 US Federal Census — Coffey-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01225-00751)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lyman Shaffer | 28 | Head | Farm Hand | Kansas |
| 42 | Velma Shaffer | 22 | Wife | — | Kansas |
| 43 | V. Irene Shaffer | 1 | Daughter | — | Kansas |
| 44 | Ernest Gugenfeller | 36 | Head | Farmer | Kansas |
| 45 | Louise Gugenfeller | 36 | Wife | — | Kansas |
| 46 | Dorothy L. Gugenfeller | 12 | Daughter | — | Kansas |
| 47 | Wayne E. Gugenfeller | 5 | Son | — | Kansas |
| 48 | Ralph D. Yalwiener | 31 | Head | Farmer | Kansas |
| 49 | Florence A. Yalwiener | 27 | Wife | — | Kansas |
| 50 | Jerry C. Yalwiener | 2 | Son | — | Kansas |
| 51 | Isaac A. D. Shaffer | 44 | Head | Farmer | Kansas |
| 52 | Mary Shaffer THIS PERSON | 41 | Wife | — | Kansas |
| 53 | Harley L. Shaffer | 19 | Son | Farm Hand | Kansas |
| 54 | Arnold D. Shaffer | 16 | Son | Farm Hand | Kansas |
| 55 | Fredia M. Shaffer | 14 | Daughter | — | Kansas |
| 56 | Lucille L. Shaffer | 7 | Daughter | — | Kansas |
| 57 | Retha A. Shaffer | 5 | Daughter | — | Kansas |
| 58 | Mary L. Shaffer | 3 | Daughter | — | Kansas |
| 59 | Gilbert L. Shepherd | 30 | Head | Farm Hand | Kansas |
| 60 | Florence M. Shepherd | 24 | Wife | — | Kansas |
| 61 | Edwin W. Shepherd | 5 | Son | — | Kansas |
| 62 | Raymond L. Shepherd | 3 | Son | — | Kansas |
| 63 | Dale E. Shepherd | 2 | Son | — | Kansas |
| 64 | Larry W. Shepherd | 0 | Son | — | Kansas |
| 65 | Edward R. Fowler | 73 | Uncle | — | Pennsylvania |
| 66 | Matilda Beyer | 32 | Head | — | Kansas |
| 67 | Houston Beyer | 5 | Son | — | Kansas |
| 68 | Alvin E. Beyer | 2 | Son | — | Kansas |
| 69 | Lloyd E. Criss | 61 | Head | Foreman | West Virginia |
| 70 | Lillian L. Criss | 61 | Wife | — | West Virginia |
| 71 | Elisha H. Rhynes | 62 | Head | — | Tennessee |
| 72 | Bessie M. Rhynes | 37 | Wife | — | Kansas |
| 73 | George W. Kaufman | 37 | Head | Farmer | Kansas |
| 74 | Cora Kaufman | 38 | Wife | — | Kansas |
| 75 | Dale E. Kaufman | 9 | Son | — | Kansas |
| 76 | Alvin E. Kaufman | 7 | Son | — | Kansas |
| 77 | Kenneth D. Kaufman | 5 | Son | — | Kansas |
| 78 | Raymon W. Kaufman | 2 | Son | — | Kansas |
| 79 | Ray C. Fletcher | 36 | Head | Farmer | Kansas |
| 80 | Goldie M. Fletcher | 30 | Wife | — | 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)