I compile Willi/eford census records in short form and this is what I found in Lonoke Co., AR in the 1900 census. I believe this is who you are looking for.
Lonoke Co. ED 80 Sht 3 Line 21
Rufus Williford 33 (March, 1867) w m married 14 yrs farmer owned farm AR AR AR, Katie 32 (April, 1868) w f wife 5 children 3 living AR TN TN, Ollie 9 (Jan, 1891) w f dau AR AR AR, Jewell 6 (Nov, 1893) w m son AR AR AR, Bird 3 (Oct, 1896) w f dau AR AR AR + 3 boarders. Dwlg 41 Fam 41. Eagle TWP. 4 June, 1900.
It shows both his parents b in AR, but I don't find a Rufus or W.R. any where in 1870 or 1880 AR. I hope this may help.