Sentence:  Throughout these exciting years I have been fortunate for , although I have never offered great financial inducements , talent has found its way to me : William Boal who so ably organizes business operations ; John Beach who guides circulation ; Irving Granville and Nelson Rector who travel widely <WSD>calling</WSD> on business firms . 
Meaning of the word marked with <WSD> tags:  have recourse to or make an appeal or request for help or information to