Are you ready, (to do the rock steady)?
Is that the 3 CD box set you've been listening to? It's an incredible compilation with good sound, too. You should definitely check out 'Treasure Isle Time Vols I + II' a 2 disc compilation for more. The tracks on these were all remastered from the original tapes, and very beautifully and sympathetically at that.
The bassist I associate the most with the period is Jackie Jackson, who incidentally had the first Fender Jazz on the island, from '62. He was in Duke Reid's house band at the incredibly warm sounding Treasure Island studio, whose hits ruled the charts and dancehalls in the middle of the '60's.
On Alton Ellis' (RIP) 'Girl I've Got A Date':
http://www.youtube.com/watch?v=W7sizv_Jcdo
Jackie jackson is still around, and was on that great recent Toots album, 'True Love'
Probably the biggest most rounded and coolest bass tone from the era, I think Jackie Jackson on Slim Smith and The Uniques' 'My Conversation', still being versioned to this day:
http://www.youtube.com/watch?v=pVVhg1xSSx8
Equally important was the much lesser known Brian Atkinson, who was the bassist with Lyn Taitt and The Jets. Lyn Taitt was probably more than anyone the originator of the style and was without doubt the most influential.
BA on the wonderful 'Ain't That Loving You' by Alton Ellis:
http://www.youtube.com/watch?v=WraMDSIDq0U
I don't know where he is these days, sorry.
Over at Studio One, who had less success during this period (being much hotter during the previous Ska and later Reggae periods, the house band under Jackie Mittoo was known as the Soul Brothers, with Brian Atkinson and Lloyd Brevett on bass. They rerecorded quite a few tracks from Treasure Island, with many of the same musicians, and the sound was usually a bit harder. They still came up with tons of great singles during this time, don't get me wrong:
'I'm Just A Guy', Alton Ellis. Lousy sound on this clip, but the original rules, and the bassline is an all-time classic, too, and one of my favorites:
http://www.youtube.com/watch?v=mAIvnHsdU7I
Just for fun, check out how many versions of this last riddim appear over the years, and I doubt it's a complete list:
http://www.dancehallmusic.de/riddimb...id=1673&page=1
Keep in mind that reggae in JA has always been about the session musicians and recorded music, and there have been relatively few touring bands over the years, and those were often made up of the same studio cats. Going to the dancehall was always the way to hear the latest tunes, and many of the bands put together to tour a single or a hot act were only put together for overseas, e.g. UK and later North America.
The steadily working bands of the era were mostly put together to play the hotels and resorts in JA, and they were tight and played all kinds of music, but probably not that much reggae, which had little support uptown and was pretty much a mystery to holiday makers until at least the '70s.
Anyway, I hope this helps a bit, keep on doing the rock steady, Freddy!