Sentence:  [So many of] the crew, men and officers alike, read them as to make me feel safe in asserting unreservedly that the "Nathan James" numbered in her company more Turgenev scholars than any other vessel on the United States Navy's entire <WSD>roster</WSD> of ships. 
Meaning of the word marked with <WSD> tags:  A list of individuals or groups, usually for an organization of some kind such as military officers and enlisted personnel enrolled in a particular unit; a muster roll; a sports team, with the names of players who are eligible to be placed in the lineup for a particular game; or a list of students officially enrolled in a school or class.