Cathy, I have a website that might be helpfull with centerboard info. http://members.cox.net/morgan24site
also Dave Doolin from Jacksonville, FL. had a Morgan 30, "Angel's Wing" and he has posted on the following site. He has indicated in the past that he has manuals for the M30. http://www.sailboatowners.com/forums...tpl?fno=499.43
You might try posting there to see if he sees it.