Sentence:  Operating in 1887 was the `` Valley Telegraph Line '' , officers of which were E. C. Orvis , president ; H. K. Fowler , <WSD>vice-president</WSD> and secretary ; J. N. Hard , treasurer ; F. H. Walker , superintendent ; H. S. Walker , assistant superintendent . 
Meaning of the word marked with <WSD> tags:  an executive officer ranking immediately below a president; may serve in the president's place under certain circumstances