Don Knotts: E Online - Credits.
IMDb: Don Knotts: Biography, credits, and photo gallery.
The Charleston Gazette: Postscript: Don Knotts: Remeberances about the late actor by Greg Stone.
The Shrine to Don Knotts: A tribute to one of the most talented and cheesy entertainers in modern history.
Warm words for Don Knotts: A tribute to Knotts.