Anyone in the vicinity of the New Jersey Maritime Museum in Beach Haven on Sunday, July 25, around 3 p.m. heard it: three long, slow foghorn blasts, a rich and perfect low C note, emanating from a tent set up in the museum’s backyard.

Dignitaries and invited guests gathered to commemorate the 65th anniversary of the sinking of the S.S. Andrea Doria off the coast of Massachusetts.