Subject matches "Hess, Frederick R." or its children

Capture net for Frederick Hess' model plane

Frederick Hess' model plane landing in net

Frederick Hess [back to camera] with model plane

Frederick Hess launching a model airplane

Frederick Hess [l] and Emerson Hiller inspecting plane

Frederick Hess [l] talking with Emerson Hiller

Frederick Hess in net handing model plane to another

Frederick Hess with his IDOE model airplane

Frederick Hess [left] and George Harvey in workshop

Frederick Fritz Hess and model airplane in capture net

Frederick Hess [l] and 2 unidentified men watching plane

Working with towed fish

Sam Simkins, Fred Hess, and Eli Katz working with instrument on deck

Group working with towed fish with CTD and O2 scanner on deck of Chain

Fred Hess with towed fish with CTD and O2 scanner on deck of Chain

Chain at WHOI dock fitting out for Thresher search.

Thumper on deck of Chain.

Thumper on deck of Chain.

Fritz Hess with towed echo sounder on aft of Atlantis II.

Fritz Hess and unidentified person.