Looking for Mckinney of Delaware Maryland Ans North Carolina

I am looking for family members that are related to my grandfather Clifton Elmo McKInney Jr (born sept 23 1944 till may 8 1994) and great grandfather Clifton Elmo McKInney Sr Died 19993. If anyone has any idea and know anybody related to them i would like to kno wthank you i am also looking for my great grandfathers wifes family members her name was Alice stewart she died Nov 2004