Unfortunately, I couldn't find any YouTube video of this song. However, there's a short sound clip on this site:

http://www.smithsonianglobalsound.org/trackdetail.aspx?itemid=8480 Smithsonian Global Sounds

Music of the Bahamas, Vol. 2: Anthems, Work Songs and Ballads
Various Artists

Pytoria (Run, Come See Jerusalem)   
John Roberts, H. Brown, and Charles Wallace
Duration: 4:52

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Jerusalem,the capital and largest city of Israel, is considered a holy city by followers of Judaism, Islam, and Christianity.

In my opinion, based on referents to "the New Jerusalem" in African American spirituals & gospel songs, in the context of the song
"Run, Come See Jerusalem", I believe that "Jerusalem" refers to heaven-the final resting place and peaceful abode of those who died in those tragic shipwrecks.