Jonas Grumby was the "Skipper" of the S.S. Minnow, and he was played by actor Alan Hale, Jr. There are a number of sites that have particulars about the series, and Wikipedia is one of them. A link to that site is below.
Captain Jonas Grumby (the Skipper) was played by Alan Hale Jr.
Jonas grumby
Jonas 'The Skipper' Grumby
Roy Hinkley.
Mrs. Lovey Howell
Jonas Grumby
Yes
rescue from gilligans island
Roy Hinkley.
Jonas 'The Skipper' Grumby
Christopher Columbus was shipwrecked on a island called,'gilligans island' xxx
Mrs. Lovey Howell
Movie star
Jonas Grumby
Gilligans Island
Wyle
Yes
YES
According to IMDb.com, yes. http://www.imdb.com/name/nm0920171/