The link between Cavey Island and HMML 115 came about as part of War Ship Week. When communities all over the United Kingdom donated money to aid in supplying ships, planes, etc to the armed forces.
a great site by Jannet Penn

The items below are
1/  Official Invitation.
2/  Dinner Menu & Program.
3/  A table place card.
These items belonged to H.B.Burchell (POMM ML115) they now reside in the Bay Museum & Research Facility on Canvey Island at the old Degaussing Station.