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Mary Mcconnell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Harrison-County, Ohio
Our Model Tree links this Mary Mcconnell across the 1920, 1930 and 1940 US Censuses in Harrison-County, Ohio (XGBoost, ~Confirmed), with identified parents John & Allie — first a daughter (b.~1911), then head of a 4-person household.
Age 29
b. ~1911
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Harrison-County, Ohio |
| Surname | McConnell |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Harrison |
| Additional Details | |
| Occupation | teacher |
| Industry | public school |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1068 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Teacher |
| Township / Ward | New Athens Village |
| Est. Birth Year | ~1911 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Mcconnell | Daughter | — | 29 | ~1911 |
| Allie Mcconnell | Spouse | — | 72 | ~1868 |
| John Mcconnell | Head | — | 77 | ~1863 |
| Helen Mcconnell | Daughter | — | 32 | ~1908 |
Census Appearances
1920
Harrison, Ohio
Daughter, age 9
Harrison, Ohio · implied b. ~1911 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McConnell |
| Given Name | Mary B |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Harrison, Ohio
Daughter, age 19
Harrison, Ohio · implied b. ~1911 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McConnell |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Harrison-County, Ohio
Daughter, age 29
Harrison-County, Ohio · implied b. ~1911 — 4 household members
| Surname | McConnell |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Harrison |
| Occupation | teacher |
| Industry | public school |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1068 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| 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 Mcconnell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Mcconnell (~0.92 confidence) and mother Allie Mcconnell (~0.92 confidence) and mother Ida Mcconnell (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Mcconnell
b. ~1865
Source father
● Household
· direct · ~0.92
Mother
Allie Mcconnell
b. ~1868
Source mother
● Household
· direct · ~0.92
Mother
Ida Mcconnell
b. ~1868
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Mcconnell
Daughter · 1940 · age 29 · b. ~1911 · Ohio
★ You are viewing this record
Sibling
Helen Mcconnell
Sibling · 1940 · age 32
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 — Harrison-County, Ohio
Open full size
1940 US Federal Census — Harrison-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03083-00028)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | William Harris | 26 | Son | Laborer | Ohio |
| 2 | Francis Williams | 82 | Head | — | Ohio |
| 3 | Maud Shivers | 73 | Head | — | Ohio |
| 4 | Lucy Shivers | 45 | Daughter | — | Ohio |
| 5 | John Mcconnell | 77 | Head | — | Ohio |
| 6 | Allie Mcconnell | 72 | Wife | — | Ohio |
| 7 | Helen Mcconnell | 32 | Daughter | Teacher | Ohio |
| 8 | Mary Mcconnell THIS PERSON | 29 | Daughter | Teacher | Ohio |
| 9 | Here Ends | None | Athens | — | — |
| 10 | Henry Hess | 65 | Head | — | Pennsylvania |
| 11 | Humphrey Hess | 70 | Wife | — | Ohio |
| 12 | Joseph Bernowski | 23 | Head | Joy Helper | Ohio |
| 13 | Ann Bernowski | 24 | Wife | — | Ohio |
| 14 | Robert Bernowski | 6 | Son | — | Ohio |
| 15 | Stephen Hromshak | 62 | Head | Timber Man | Poland |
| 16 | Victoria Hromshak | 62 | Wife | — | Poland |
| 17 | Paul Hromshak | 29 | Son | Motorman | West Virginia |
| 18 | Laura Josephine Hromshak | 24 | Daughter | — | Virginia |
| 19 | Robert Hromshak | 3 | Son | — | Ohio |
| 20 | Andrew Douglas | 65 | Head | — | Ohio |
| 21 | Kirk Douglas | 66 | Brother | Township Trustee | Ohio |
| 22 | Albert Henthorne | 28 | Head | Operator | New York |
| 23 | Laura Henthorne | 20 | Wife | — | Ohio |
| 24 | John Hromshak | 52 | Head | Track Man | Austria |
| 25 | Anna Hromshak | 45 | Wife | — | Austria |
| 26 | Henry Hromshak | 23 | Son | Driller | Ohio |
| 27 | Rudolf Hromshak | 21 | Son | Pick Work | Ohio |
| 28 | Julia Hromshak | 18 | Daughter | — | Ohio |
| 29 | Carl Hromshak | 16 | Son | — | Ohio |
| 30 | Fred Hromshak | 15 | Son | — | Ohio |
| 31 | Helen Hromshak | 13 | Daughter | — | Ohio |
| 32 | Alice Harris | 67 | Head | — | Ohio |
| 33 | Ernest Harris | 29 | Son | Laborer | Ohio |
| 34 | Clyde Harris | 28 | Son | Coal Loader | Ohio |
| 35 | James Harris | 25 | Son | — | Ohio |
| 36 | Isaac Carter | 42 | Head | Machine Operator | Ohio |
| 37 | Alice Carter | 35 | Wife | — | Ohio |
| 38 | Betty Carter | 15 | Daughter | — | Ohio |
| 39 | Doris Carter | 7 | Daughter | — | Ohio |
| 40 | James Greiss | 78 | Head | — | Ohio |
Related Census Records
Pedigree Summary
Mary + 1 sibling
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)