In _Twice 55 Plus: Community Songs--The New Brown Book_ (and how DO I make italics?), the title is "Sailing" (only once). The first verse has "And *soon* across the ocean clear". The second verse has "With *jovial* song". The third verse ends "For when the tempest rages wide and far,/ That home shall be the sailor's guiding star". (The version in Joe Offer's book doesn't make sense to me.) There are also some differences in punctuation.

As for Joe's question--unfortunately, all this book says is, "Marks was an English composer best known in this country by this very popular song."

The familiar "sailing, sailing" part is the chorus in the sense that my book prints it in four-part harmony, but the rest as a solo.