The foghorn from the shipwrecked S.S. Andrea Doria, widely considered to be “hallowed ground” and the birthplace of present-day Northeast Atlantic wreck diving techniques, has been raised from the ocean floor and fully restored to its original appearance and operation. A commemoration of its role in history comes to Beach Haven later this month.

Triumphantly, the horn will sound – for the first time since it blew during the collision that sank the ship in 1956 – on the afternoon of Sunday, July…