Oh a CSN fan. Many people do not know that Paul wrote this. They could not mention him in the credits due to legal reasons w/ Jefferson Airplane. Maybe one day a could sail with David on his yacht, Music.
Since this is a musical obscurities thread <G> I'll push it further. Same vintage, the Jefferson Airplane album "Volunteers of America" came with a double-spread b&w poster of a huge black dog inside titled "Brumus".
It turns out that was Bobby Kennedy's dog, who sometimes went to Congress and waited outside the door of the building until Master was done for the day.
Newfoundlands bring the topic back to sailing, of course.<G>
IIRC the song "Triad" was on the same album and that also was a Crosby song that was deemed too radical to sing (because it is about a threesome) by any CSxx group.
Paul McCartney wrote Martha My Dear for his dog - creepy. While recording Sgt peppers someone mentioned dogs could hear high frequency sound so at the end of the album is 20s of high frequency ( un hearable to us ) noises that should drive the dog nuts.