Hi Roz,
I came accross a Bender McKinnie born abt 1877 age 3 yrs in Mississippi. He is listed in the household of Abram McKinnie born abt 1825 age 55. Wife Sarah born abt 1850 age 30. Sarah is probably his mother. There is a sdaughter Emma Stephen born abt 1869 age 11. This might be your family with a different spelling.
Gerry