seeking info re: Andrew Jackson McCook b. 1847

I am trying to find further information regarding
Andrew Jackson McCook b. 1847 (according to 1880 census in Texas).
I found him in White Rock, Franklin Co., Arkansas in 1880:
Andrew J. McCook age 33, b. TX, father b. IRE, mother b. GA.
wife: Louise E. McCook age 28, b. AR, father b. GA, mother b. GA.
son: William A. McCook age 8, b. AR.
son: James A. McCook, age 5, b. AR.
daughter: Mary, age 2, b. AR.

in 1900 I find Andrew J. McCook age 53 in Whitley TWP, Crawford Co., AR. with wife Louisa E., age 48, son Albert H., age 18, daughter Samantha C., age 15, son Samuel P. McCook, age 13, and daughter Louisa E., age 5.

According to family records, Andrew Jackson McCook's father was Henry C. McCook from Ireland and his mother's maiden Evans?.

Known info:
Andrew Jackson McCook married Louisa Emmaline Baker on
27 July 1870.
their son William A. McCook married Mary Stephens 1893?
son, Albert Hamilton "Ham" McCook married
Nancy Margaret Gregory, 23 July 1902.
Daughter Samantha married W. Robeson (or Robison) Sept 1904.

(Samuel P. McCook, middle name is Peel).

So, if anyone has info or links to this family line, let me hear from you as I would love to find further connections and information.
Thanks,
Linda McCook
http://freepages.genealogy.rootsweb.com/~mccookfamilyconnectionshttp://freepages.genealogy.rootsweb.com/~mccookfamilyconnections