Tracing backwards from 1910:

1910 United States Federal Census
Name: Amanda Riddick
[Amanda Reddick]
Age in 1910: 54
Estimated Birth Year: abt 1856
Birthplace: Missouri
Relation to Head of House: Mother
Father's Birth Place: Tennessee
Mother's Birth Place: New York
Home in 1910: Weleetka, Okfuskee, Oklahoma
Marital Status: Widowed
Race: White
Gender: Female
Household Members: Name Age
William P Riddick 34 head
Addie Riddick 18 wife
Amanda Riddick 54 mother
Robert Riddick 15 brother

Is this her?

1880 United States Federal Census
Name: Amanda King
Home in 1880: Wood, Carroll, Missouri
Age: 24
Estimated Birth Year: abt 1856
Birthplace: Missouri
Relation to Head of Household: Daughter
Father's birthplace: Missouri
Mother's Name: Mynervy
Mother's birthplace: Kentucky
Marital Status: Single
Race: White
Gender: Female
Household Members: Name Age
Mynervy King 62 head keeping house widowed
Dyer King 30 son farmer single
Amanda King 24 daughter single
Matilda F. King 22 daughter single

Could she have been known as "Minnie E."?

1880 United States Federal Census
Name: James M. Reddick
Home in 1880: Monroe, Andrew, Missouri
Age: 40
Estimated Birth Year: abt 1840
Birthplace: Ohio
Relation to Head of Household: Self (Head)
Spouse's Name: Minnie E.
Father's birthplace: Pennsylvania
Mother's birthplace: Kentucky
Occupation: Farmer
Marital Status: Married
Race: White
Gender: Male
Household Members: Name Age
James M. Reddick 40 married farmer
Minnie E. Reddick 24 married wife
William Reddick 4 son single
George Reddick 5M son single
John D. King 18 Laborer works on Farm past 4 months
[couldn't this also be a brother-in-law? or her cousin?]

Lot of other Reddick's are in the neighborhood:
James S. Reddick 45 and his daughter Nancy J. 2
Peyton Reddick 36 brother employed on Farm
Louisa Reddick 4 daughter
Eliza N. Reddick 20 wife
Joseph Reddick 6 son

David Reddick 62 head farmer
Sophia Reddick 62 wife keeping house
Martha L. Reddick 10 granddaughter at home

Tough coming up with information.

JR