Bill Nagle was one of the earliest divers to dive regularly beyond diver training agency specified depth limits for safe deep diving (normally 130 feet in sea water).
[citation needed] In 1985 Nagle led the team of divers, including Gary Gentile, Art Kirchner, Tom Packer, Mike Boring, John Moyer and Kenny Gascon, who recovered the bell of the Andrea Doria, which had previously been thought lost and unrecoverable.
[1] The story of the recovery expedition is recounted in Gary Gentile's book, Andrea Doria: Dive to an Era.
[2] The later years of Nagle's life were dominated by a descent into alcoholism and drug abuse.
[citation needed] His last great expedition was the exploration of German submarine U-869, although he was never physically able to dive on it.