Mary Madleean was a daughter of Mira (Melton) McCoy and Peter McCoy.

1860 United States Federal Census
Name: Mary M Mccoy
Age in 1860: 19
Birth Year: abt 1841
Birthplace: Indiana
Home in 1860: Clay, Adair, Missouri
Gender: Female
Post Office: Wilmothville
Household Members: Name Age
Peter Mccoy 51
Mariah Mccoy 51
Mary M Mccoy 19
Malinda Mccoy 16
Mahala Milton 48

1870 United States Federal Census
Name: Mary Mccoy
Age in 1870: 28
Birth Year: abt 1842
Birthplace: Indiana
Home in 1870: Lamoine, McDonough, Illinois
Race: White
Gender: Female
Post Office: Colchester
Household Members: Name Age
Peter Mccoy 63
Myra Mccoy 63
Mary Mccoy 28
Mahala Melton 59

1880 United States Federal Census
Name: Myra Mc Coy
Age: 39
Birth Year: abt 1841
Birthplace: Indiana
Home in 1880: Le Moine, McDonough, Illinois
Race: White
Gender: Female
Relation to Head of House: Daughter
Marital Status: Single
Father's Name: Peter Mc Coy
Father's Birthplace: Tennessee
Mother's name: Myra Mc Coy
Mother's Birthplace: North Carolina
Household Members: Name Age
Peter Mc Coy 72
Myra Mc Coy 72
Myra Mc Coy 39
Mahala Melton 69

1900 United States Federal Census
Name: Mary M Mccoy
Age: 69
Birth Date: Apr 1841
Birthplace: Indiana
Home in 1900: Bethel, McDonough, Illinois
Race: White
Gender: Female
Relation to Head of House: Aunt [Servant]
Marital Status: Single
Father's Birthplace: Tennessee
Mother's Birthplace: North Carolina
Household Members: Name Age
Wm E Parks 36
Mary C Parks 37
Evert E Parks 7
Mary M Mccoy 69

Mary M. McCoy died on Jan 29, 1911.
She was never married.
Mary was 69 years 9 months 5 days old when she passed away.
She leaves to mourn her three sisters : Mrs. Mahala Warner ; Mrs Sarah Beshear and Mrs Malinda Hill, along with one brother : Jacob McCoy.
Two sisters preceded her in death and Her mother Susan ( Clark ) McCoy died April 26, 1893.

Mary M. McCoy is buried in the North West Section of the Gibson Cemetery.