I assume this is Grainger's setting of the chantey? The chantey often also goes by the name "Lowlands Away". Roughly, it appears to be an older Scots or Northern English song that was refashioned by stevedores in the Southern U.S., most likely through African-American influence, into a work-song (chantey). Many verses are on hand. If Grainger got it from Cecil Sharp, that version can be found in ENGLISH FOLK-CHANTEYS (1914), pg 21 (available free on-line).