MS
Mary Sawyer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Champaign-County, Ohio
Our Model Tree links this Mary Sawyer across the 1930 and 1940 US Censuses in Champaign-County, Ohio (XGBoost, ~Confirmed) — first a daughter (b.~1920), then head of a 13-person household.
Age 20
b. ~1920
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Champaign-County, Ohio |
| Surname | Sawyer |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Champaign |
| Additional Details | |
| Highest Grade | H-4 |
| 1935 Residence | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Concord T |
| Est. Birth Year | ~1920 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| George Sawyer | Son | — | 22 | ~1918 |
| Cotta Sawyer | Spouse | — | 46 | ~1894 |
| Wilhelmine Russell | Other | — | 24 | ~1916 |
| Bobby Sawyer | Son | — | 3 | ~1937 |
| Irene Sawyer | Daughter | — | 13 | ~1927 |
| Herman Sawyer | Son | — | 16 | ~1924 |
| Donald Sawyer | Son | — | 9 | ~1931 |
| Betty Sawyer | Daughter | — | 5 | ~1935 |
| Don Russell | Son | — | 25 | ~1915 |
| Kathryn Russell | Other | — | 3 | ~1937 |
| John Sawyer | Son | — | 18 | ~1922 |
| Harley Sawyer | Head | — | 52 | ~1888 |
| Mary Sawyer | Daughter | — | 20 | ~1920 |
Census Appearances
1930
Champaign, Ohio
Daughter, age 10
Champaign, Ohio · implied b. ~1920 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sawyer |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Ohio |
| Age at First Marriage | 10 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Champaign-County, Ohio
Daughter, age 20
Champaign-County, Ohio · implied b. ~1920 — 13 household members
| Surname | Sawyer |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Champaign |
| Highest Grade | H-4 |
| 1935 Residence | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Sawyer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Sawyer
Daughter · 1940 · age 20 · b. ~1920 · Ohio
★ You are viewing this record
Sibling
Bobby Sawyer
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Sawyer
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Sawyer
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Sawyer
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irene Sawyer
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Don Russell
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Sawyer
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Herman Sawyer
Sibling · 1940 · age 16
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 — Champaign-County, Ohio
Open full size
1940 US Federal Census — Champaign-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03037-00041)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Fred Williams | 6 | Son | — | Ohio |
| 2 | H. B. Thomas | 76 | Head | Farmer | Ohio |
| 3 | Ella Thomas | 71 | Wife | — | Ohio |
| 4 | Faye Thomas | 39 | Daughter | — | Ohio |
| 5 | Elden Thomas | 34 | Son | Farm Labor | Ohio |
| 6 | John Overfield | 59 | Head | Farmer | Ohio |
| 7 | Minnie Belle Overfield | 53 | Wife | — | Ohio |
| 8 | Florence Overfield | 29 | Daughter | — | Ohio |
| 9 | Robert Overfield | 19 | Son | Farm Labor | Ohio |
| 10 | Russell Frank | 13 | Grandson | — | Ohio |
| 11 | James Frank | 10 | Grandson | — | Ohio |
| 12 | Roscoe Mason | 26 | Son-in-law | Truck Driver | Ohio |
| 13 | Anna Mason | 26 | Daughter | — | Ohio |
| 14 | Harley M. Sawyer | 52 | Head | Hoist Operator | Ohio |
| 15 | Cotta M. Sawyer | 46 | Wife | — | Ohio |
| 16 | George Sawyer | 22 | Son | Farmer | Ohio |
| 17 | Mary Sawyer THIS PERSON | 20 | Daughter | — | Ohio |
| 18 | John Sawyer | 18 | Son | — | Ohio |
| 19 | Herman Sawyer | 16 | Son | — | Ohio |
| 20 | Irene Sawyer | 13 | Daughter | — | Ohio |
| 21 | Donald Sawyer | 9 | Son | — | Ohio |
| 22 | Betty Sawyer | 5 | Daughter | — | Ohio |
| 23 | Bobby Sawyer | 3 | Son | — | Ohio |
| 24 | Don Russell | 25 | Son | Station Operator | Ohio |
| 25 | Wilhelmine Russell | 24 | Daughter-in-law | — | Ohio |
| 26 | Kathryn Russell | 3 | Granddaughter | — | Ohio |
| 27 | Don C. D. Zoll | 47 | Head | — | Ohio |
| 28 | Velma Zoll | 42 | Wife | — | Ohio |
| 29 | Kenneth Zoll | 20 | Son | Farm Labor | Ohio |
| 30 | Harold Zoll | 16 | Son | Farm Labor | Ohio |
| 31 | June Zoll | 12 | Daughter | — | Ohio |
| 32 | Glendora Clark | 23 | Daughter | — | Ohio |
| 33 | Marilyn Clark | 3 | Granddaughter | — | Ohio |
| 34 | Milo D. Garlena | 66 | Head | Farm Labor | Ohio |
| 35 | Ella Louise Garlena | 36 | Wife | — | Ohio |
| 36 | Donald Garlena | 16 | Son | Farm Labor | Ohio |
| 37 | Wm. H. Pond | 65 | Head | Farmer | Ohio |
| 38 | Emma E. Pond | 58 | Wife | — | Ohio |
| 39 | Allen Squire | 34 | Head | Truck Driver | Ohio |
| 40 | Lillian D. Squire | 35 | Wife | — | Ohio |
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)