Robert Simoncini
Robert Sinclair
Robert Skorburg
Robert Slammon
Robert Sloan H.
Robert Sloat
Robert Smotherman
Robert Sorensen
Robert Starinsky
Robert Stelk
Robert Stockman
Robert Stolz
Robert Straub
Robert Tapia
Robert Valgenti
Robert Vallier
Robert Wiar C.
Robert Wilcox
Robert Williams
Robert Wilson