I couldn't find a John Knight in the 1900 census that matched yours. In the 1910, there is just one John Knight listed in Van Buren County.

1910 Van Buren County, Linn Creek TWP, page 132, household 94.
Knight, John G. head, 53, wd, ILL, chopper, timber
" , Ruthie dau, 8, AR ILL, AR
" , Gertie dau, 6, "
" , John son, 3, "

I'm not sure this one is yours.
Red Anthony, Clinton, Arkansas