I just noticed the lyrics in the DT also say "stir my soot to go" where it should be "stir my foot to go".

Anyone looking for all the information on this song should follow the link Martin Ryan posted previously on this thread. At that thread, titled LAGAN LOVE QUERY, John posts the correct information about the lyric's source. To quote John - "You may be quite certain that it is the river which flows through Belfast. The song was first published in "Songs of Uladh" [Herbert Hughes and Joseph Campbell] published in Belfast by William Mullan and sons and in Dublin by MH Gill, 1904."