Most likely from a private collector.
Single (just one captain) - The captain's table. Plural (many captains) - The captains' table. or The captains' tables.
you do all of murrays quests and buy it in his shop
a liquior store
Tesco.
You can because Whiskey is Irish. Whisky is Scottish.
Um ... at a liquor store. lol. That is if you are in Canada, if your not well then find a liquor store with a large selection.
No. There's a limit on liquids. You could use the whiskey to blow up the plane. You can buy whiskey at the airport store though.
at the liquor store, stupid!
Whiskey
It was the place where the captain and officers (first, second, and third mates) had their meals.
Anyone can buy one if they have the money. Hope this answered your question.
The distillery at Mt. Vernon was restored and some whiskey was made. It was sold on site at Mt. Vernon. I do not think any is currently available, so you would have to buy it on the secondary market, from a collector.