I BELIEVE Hampton Peter Adkison (1817-1895), who was born in IL and moved to AR, moved to Bosque County, TX between the 1870 and 1880 Census (about 1897).I believe all but his last two children (1876 & 1884) were born in AR.
I only know of one other relative who moved to Texas, which is Hampton's brother (I believe) Charles Schultz Adkison (1827-?). Charles had two children born in TX and his earlier three children were born in AR.
A rumor was that Hampton's father was named C.S. and he had a brother named Luke.
I have been unable to connect any of the other lines of Adkisons in Texas to mine.