MS
Mary Shaffer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Oklahoma-County, Oklahoma
Our Model Tree links this Mary Shaffer across the 1930 and 1940 US Censuses in Oklahoma-County, Oklahoma (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 6-person household.
Age 12
b. ~1928
Female
Daughter
Born: Oklahoma
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Oklahoma-County, Oklahoma |
| Surname | Shaffer |
| Given Name | Mary J |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Oklahoma City |
| 1935 Residence (County) | Oklahoma |
| Additional Details | |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
| Township / Ward | Oklahoma City |
| Est. Birth Year | ~1928 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Shaffer | Daughter | — | 12 | ~1928 |
| E Shaffer | Head | — | 37 | ~1903 |
| Carolyn Shaffer | Daughter | — | 7 | ~1933 |
| Daryl Shaffer | Son | — | 10 | ~1930 |
| Charles Shaffer | Son | — | 2 | ~1938 |
| Jeanette Shaffer | Spouse | — | 37 | ~1903 |
Census Appearances
1930
Oklahoma, Oklahoma
Daughter, age 2
Oklahoma, Oklahoma · implied b. ~1928 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sheaffer |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| Father's Birthplace | Oklahoma |
| Mother's Birthplace | Oklahoma |
| Occupation | none |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1940
Oklahoma-County, Oklahoma
Daughter, age 12
Oklahoma-County, Oklahoma · implied b. ~1928 — 6 household members
| Surname | Shaffer |
| Given Name | Mary J |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Oklahoma City |
| 1935 Residence (County) | Oklahoma |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
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.
Show:
This person
Anchor record
Mary Shaffer
Daughter · 1940 · age 12 · b. ~1928 · Oklahoma
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Sibling
Charles Shaffer
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daryl Shaffer
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carolyn Shaffer
Sibling · 1940 · age 7
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
37 people indexed on this census page (nara:1940:m-t0627-03346-00854)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary O Ewing | 54 | Head | — | Kansas |
| 42 | Herbert Ewing | 20 | Son | Etc | Oklahoma |
| 43 | Elizabeth Ewing | 14 | Daughter | — | Oklahoma |
| 44 | Frank Ewing | 25 | Son | — | Oklahoma |
| 45 | E H Shaffer | 37 | Head | — | Oklahoma |
| 46 | Jeanette O Shaffer | 37 | Wife | — | Oklahoma |
| 47 | Mary J Shaffer THIS PERSON | 12 | Daughter | — | Oklahoma |
| 48 | Daryl L Shaffer | 10 | Son | — | Oklahoma |
| 49 | Carolyn M Shaffer | 7 | Daughter | — | Oklahoma |
| 50 | Charles L Shaffer | 2 | Son | — | Oklahoma |
| 51 | Conner O Martin | 69 | Head | Carpenter | — |
| 52 | Dennis M Martin | 19 | Son | Mechanic | Oklahoma |
| 53 | Mattie Hamby | 29 | Daughter | — | Oklahoma |
| 54 | Lindon Hamby | 32 | Son in law | Hand-A-Bout | Oklahoma |
| 55 | Lindon Jr Hamby | 13 | Grandson | — | Oklahoma |
| 56 | Freda Hamby | 10 | Gr daughter | — | Oklahoma |
| 57 | Juanita Hamby | 6 | Gr daughter | — | Oklahoma |
| 58 | Lowry Puckett | 28 | Daughter | Truck Driver | Oklahoma |
| 59 | R Richard | 29 | Son in law | Truck Driver | Oklahoma |
| 60 | R Jr Richard | 5 | Grandson | — | Oklahoma |
| 61 | Raymond M Richard | 2 | Grandson | — | Oklahoma |
| 62 | Gilbert F Lipton | 45 | Head | Carpenter | Oklahoma |
| 63 | Ida O Lipton | 44 | Wife | None | — |
| 64 | Anna M Lipton | 19 | Daughter | — | Oklahoma |
| 65 | Iona Lipton | 14 | Daughter | — | Oklahoma |
| 66 | Lillie Sparks | 62 | Mother in law | — | Missouri |
| 67 | Lester M Taylor | 46 | Head | Laborer | Oklahoma |
| 68 | Doris Taylor | 42 | Wife | Ironer | Texas |
| 69 | Lewis Taylor | 17 | Son | — | Oklahoma |
| 70 | Clarene Taylor | 15 | Daughter | — | Texas |
| 72 | Roy O Hacker | 22 | Head | Elevator Operator | Oklahoma |
| 73 | Ellen Hacker | 21 | Wife | — | Oklahoma |
| 74 | Wanda J Hacker | 2 | Daughter | — | Oklahoma |
| 75 | R J Sikes | 48 | Head | — | Illinois |
| 76 | Pearl O Sikes | 33 | Wife | — | Oklahoma |
| 77 | Genevieve Sikes | 15 | Daughter | — | Oklahoma |
| 78 | Elizabeth Sikes | 12 | Daughter | — | Oklahoma |
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)