Birth location is possibly Albion, Noble, Indiana.* No source at be located at this time. Her parents and her brother, Walton, were living in Orange, Noble, Indiana on the 1880 census.
*Edit request for this location from Find A Grave member 47057204.

1900 United States Federal Census
Name: Mabel
Age: 20
Birth Date: Aug 1879
Birthplace: Indiana
Home in 1900: Scottsville, Allen, Kentucky
Race: White
Gender: Female
Relation to Head of House: Daughter
Marital Status: Single
Father's name: Adam
Father's Birthplace: Ohio
Mother's name: Rebecca
Mother's Birthplace: Indiana
Household Members: Name Age
Adam 55
Rebecca 42
Mabel 20
John 17
Forest 12

1910 United States Federal Census
Name: Mabel Waldrop
Age in 1910: 29
Birth Year: abt 1881
Birthplace: Indiana
Home in 1910: Glasgow, Barren, Kentucky
Race: White
Gender: Female
Relation to Head of House: Wife
Marital Status: Married
Spouse's Name: Eugene Waldrop
Father's Birthplace: Ohio
Mother's Birthplace: Indiana
Native Tongue: English
Able to Read: Yes
Able to Write: Yes
Years Married: 7
Number of Children Born: 5
Number of Children Living: 3
Household Members: Name Age
Eugene Waldrop 44
Mabel Waldrop 29
Don E Waldrop 4
Walter H Waldrop 3
Paul R Waldrop 1 2/12

1920 United States Federal Census
Name: Mabel I Waldip
Age: 39
Birth Year: abt 1881
Birthplace: Indiana
Home in 1920: Parker, Edmonson, Kentucky
Street: 23
Race: White
Gender: Female
Relation to Head of House: Wife
Marital Status: Married
Spouse's Name: Eugene Waldip
Father's Birthplace: Ohio
Mother's Birthplace: Indiana
Able to Speak English: Yes
Occupation: None
Household Members: Name Age
Eugene Waldip 54
Mabel I Waldip 39
Tom E Waldip 14
Walter H Waldip 13
Paul R Waldip 11
Warren Waldip 55

1930 United States Federal Census
Name: Mabel Waldrop
Birth Year: abt 1881
Gender: Female
Race: White
Birthplace: Kentucky
Marital Status: Married
Relation to Head of House: Wife
Homemaker?: Yes
Home in 1930: Parker and Rocky Hill, Edmonson, Kentucky
Street address: Dixie Highway
Dwelling Number: 164
Family Number: 167
Age at First Marriage: 22
Attended School: No
Able to Read and Write: Yes
Father's Birthplace: Kentucky
Mother's Birthplace: Kentucky
Able to Speak English: Yes
Household Members: Name Age
Eugene Waldrop 64
Mabel Waldrop 49
Henderson Waldrop 23

[Incorrectly transcribed as Maldrup.]
1940 United States Federal Census
Name: Mable I Waldrop
Age: 60
Estimated birth year: abt 1880
Gender: Female
Race: White
Birthplace: Kentucky
Marital Status: Widowed
Relation to Head of House: Head
Home in 1940: Edmonson, Kentucky
Street: Rocky Hill
Farm: Yes
Inferred Residence in 1935: Sh, Edmonson, Kentucky
Residence in 1935: Same House
Sheet Number: 4B
Number of Household in Order of Visitation: 95
Occupation: Farmer
House Owned or Rented: Owned
Value of Home or Monthly Rental if Rented: 12000
Attended School or College: No
Highest Grade Completed: High School, 1st year
Hours Worked Week Prior to Census: 40
Class of Worker: Employer
Weeks Worked in 1939: 52
Income: 0
Income Other Sources: Yes
Household Members: Name Age
Mable V Waldrop 60
Paul Waldrop 32
Maymee Waldrop 32
Billie Waldrop 8

Kentucky Death Index, 1911-2000
Name: Mabel I Waldrop
Death Date: 29 Jan 1969
Death Place: Barren
Age: 88
Residence: Barren
Volume: 5
Certificate: 2084