GS
George Shaffer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Gunnison-County, Colorado
Our Model Tree links this George Shaffer across the 1930 and 1940 US Censuses in Gunnison-County, Colorado (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 8-person household.
Age 16
b. ~1924
Male
Son
Born: Colorado
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Gunnison-County, Colorado |
| Surname | Shaffer |
| Given Name | George P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Crested Butte town |
| 1935 Residence (County) | Gunnison |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Township / Ward | Crested Butte Town |
| Est. Birth Year | ~1924 |
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 George | Age | Birth yr |
|---|---|---|---|---|
| Joseph Shaffer | Son | — | 17 | ~1923 |
| George Shaffer | Son | — | 16 | ~1924 |
| Anton Shaffer | Son | — | 6 | ~1934 |
| John Shaffer | Son | — | 8 | ~1932 |
| Anna Shaffer | Spouse | — | 45 | ~1895 |
| John Shaffer | Head | — | 45 | ~1895 |
| Anna Shaffer | Daughter | — | 17 | ~1923 |
| Pauline Shaffer | Daughter | — | 15 | ~1925 |
Census Appearances
1930
Gunnison, Colorado
Son, age 6
Gunnison, Colorado · implied b. ~1924 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Shaffer |
| Given Name | George |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Jugoslavia |
| Mother's Birthplace | Jugoslavia |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Gunnison-County, Colorado
Son, age 16
Gunnison-County, Colorado · implied b. ~1924 — 8 household members
| Surname | Shaffer |
| Given Name | George P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Crested Butte town |
| 1935 Residence (County) | Gunnison |
| Income (1939) | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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 George Shaffer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
George Shaffer
Son · 1940 · age 16 · b. ~1924 · Colorado
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Sibling
Joseph Shaffer
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Shaffer
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Shaffer
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Pauline Shaffer
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anton Shaffer
Sibling · 1940 · age 6
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 — Gunnison-County, Colorado
Open full size
1940 US Federal Census — Gunnison-County, Colorado
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00464-00259)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Shaffer | 45 | Head | Coal Miner | Yugoslavia |
| 2 | Anna Shaffer | 45 | Wife | — | Yugoslavia |
| 3 | Joseph R. Shaffer | 17 | Son | Miner | Colorado |
| 4 | Anna M. Shaffer | 17 | Daughter | — | Colorado |
| 5 | George P. Shaffer THIS PERSON | 16 | Son | — | Colorado |
| 6 | Pauline B. Shaffer | 15 | Daughter | — | Colorado |
| 7 | John M. Shaffer | 8 | Son | — | Colorado |
| 8 | Anton L. Shaffer | 6 | Son | — | Colorado |
| 9 | Joseph G. Tezak | 42 | Head | Miner | Yugoslavia |
| 10 | Mary J. Tezak | 30 | Wife | — | Colorado |
| 11 | Joseph V. Tezak | 14 | Son | — | Colorado |
| 12 | John W. Tezak | 12 | Son | — | Colorado |
| 13 | Leonard M. Tezak | 11 | Son | — | Colorado |
| 14 | Corina Martinez | 36 | Head | — | New Mexico |
| 15 | Flora M. Martinez | 16 | Daughter | — | New Mexico |
| 16 | Fred G. Martinez | 14 | Son | — | Colorado |
| 17 | Lucy M. D. Martinez | 13 | Daughter | — | Colorado |
| 18 | Billy B. Martinez | 12 | Son | — | Colorado |
| 19 | Bernie Martinez | 10 | Son | — | Colorado |
| 20 | John C. Martinez | 9 | Son | — | Colorado |
| 21 | Charles Martinez | 1 | Son | — | Colorado |
| 22 | Anton Tezak | 48 | Head | Miner | Yugoslavia |
| 23 | Agnes Tezak | 37 | Wife | — | Yugoslavia |
| 24 | Tony J. Tezak | 18 | Son | Del-Boy Boy | Colorado |
| 25 | Elsie M. Tezak | 16 | Daughter | — | Colorado |
| 26 | Agnes C. Tezak | 11 | Daughter | — | Colorado |
| 27 | Beverly A. Tezak | 8 | Daughter | — | Colorado |
| 28 | Mary Rozman | 70 | Head | — | Yugoslavia |
| 29 | John Slozz | 69 | Head | — | Yugoslavia |
| 30 | Margaret Slozz | 67 | Wife | — | Yugoslavia |
| 31 | Joseph N. Slozz | 40 | Son | Butcher | Colorado |
| 32 | Frances A. Slozz | 30 | Daughter | — | Colorado |
| 33 | Louis J. Slozz | 27 | Son | Deliveryman | Colorado |
| 34 | Louis E. Coleman | 39 | Head | Motorman | Arkansas |
| 35 | Grace E. Coleman | 24 | Wife | — | Utah |
| 36 | Harry J. Coleman | 5 | Son | — | Colorado |
| 37 | Jacqueline L. Coleman | 3 | Daughter | — | Colorado |
| 38 | Luverly A. Coleman | 2 | Daughter | — | Colorado |
| 39 | William F. Kwistowski | 33 | Head | Miner | Colorado |
| 40 | Mary E. Kwistowski | 26 | Wife | — | Colorado |
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)