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Mary Blackburn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Stark-County, Ohio
Our Model Tree links this Mary Blackburn across the 1930 and 1940 US Censuses in Stark-County, Ohio (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 7-person household.
Age 18
b. ~1922
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Stark-County, Ohio |
| Surname | Blackburn |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Navarre |
| 1935 Residence (County) | Stark |
| Additional Details | |
| Occupation | new worker |
| Class of Worker | PW |
| Hours Worked | 2 |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | New Worker |
| Township / Ward | Navarre |
| Est. Birth Year | ~1922 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Blackburn | Daughter | — | 18 | ~1922 |
| Kathleen Blackburn | Daughter | — | 19 | ~1921 |
| Sonia Blackburn | Daughter | — | 3 | ~1937 |
| Frank Blackburn | Head | — | 45 | ~1895 |
| Dorothy Blackburn | Spouse | — | 38 | ~1902 |
| Bonita Blackburn | Daughter | — | 2 | ~1938 |
| Frank Blackburn | Son | — | 12 | ~1928 |
Census Appearances
1930
Stark, Ohio
Daughter, age 8
Stark, Ohio · implied b. ~1922 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Blackburn |
| Given Name | Mary Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Stark-County, Ohio
Daughter, age 18
Stark-County, Ohio · implied b. ~1922 — 7 household members
| Surname | Blackburn |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Navarre |
| 1935 Residence (County) | Stark |
| Occupation | new worker |
| Class of Worker | PW |
| Hours Worked | 2 |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same house |
| 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 Blackburn across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Blackburn
Daughter · 1940 · age 18 · b. ~1922 · Ohio
★ You are viewing this record
Sibling
Sonia Blackburn
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frank Blackburn
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bonita Blackburn
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kathleen Blackburn
Sibling · 1940 · age 19
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 — Stark-County, Ohio
Open full size
1940 US Federal Census — Stark-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03147-00035)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Margaret Stotzer | 30 | wife | — | Ohio |
| 2 | Nancy Stotzer | 3 | daughter | — | Ohio |
| 3 | William Stotzer | 2 | son | — | Ohio |
| 4 | Adolph Heitner | 39 | head | Painter | Ohio |
| 5 | Dorothy Heitner | 36 | wife | — | Ohio |
| 6 | Raymond Heitner | 17 | son | Printer Helper | Ohio |
| 7 | Mary Heitner | 15 | daughter | — | Ohio |
| 8 | Thomas Heitner | 11 | son | — | Ohio |
| 9 | Patty Heitner | 7 | daughter | — | Ohio |
| 10 | Frank Costello | 58 | head | Odd Jobs | Italy |
| 11 | Harry Gant | 34 | head | Rigger | Michigan |
| 12 | Ethel Gant | 32 | wife | — | Ohio |
| 13 | Ronald Gant | 2 | son | — | Ohio |
| 14 | Sandra Gant | 1 | daughter | — | Ohio |
| 15 | John Fluecht | 66 | head | — | Ohio |
| 16 | Mary Fluecht | 63 | wife | — | Ohio |
| 17 | Kenneth Fluecht | 41 | son | Laborer | Ohio |
| 18 | David Fisher | 87 | head | — | Ohio |
| 19 | Dorothea Miller | 56 | head | Clerk | Ohio |
| 20 | Clarence Whetter | 51 | head | Fireman | Ohio |
| 21 | Mae Whetter | 41 | wife | — | Ohio |
| 22 | Ruth Stein | 37 | head | Miscellaneous Worker | Ohio |
| 23 | John Jr. Stein | 18 | son | New Worker | Ohio |
| 24 | Earl Heintzelman | 19 | brother | New Worker | Ohio |
| 25 | Frank Blackburn | 45 | head | Machinist | Indiana |
| 26 | Dorothy Blackburn | 38 | wife | — | Ohio |
| 27 | Kathleen Blackburn | 19 | daughter | New Worker | Ohio |
| 28 | Mary Blackburn THIS PERSON | 18 | daughter | New Worker | Ohio |
| 29 | Frank Blackburn | 12 | son | — | Ohio |
| 30 | Sonia Blackburn | 3 | daughter | — | Ohio |
| 31 | Bonita Blackburn | 2 | daughter | — | Ohio |
| 32 | Gerald Eberly | 32 | head | Repairman | Ohio |
| 33 | Helen Eberly | 30 | wife | — | Ohio |
| 34 | Carol Eberly | 7 | daughter | — | Ohio |
| 35 | Janet Eberly | 5 | daughter | — | Ohio |
| 36 | David Eberly | 1 | son | — | Ohio |
| 37 | John Nickles | 34 | head | Automobile Mechanic | Ohio |
| 38 | Ida Nickles | 35 | wife | — | Germany |
| 39 | Lois Nickles | 12 | daughter | — | Ohio |
| 40 | Annette Nickles | 1 | daughter | — | 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)