Arrrgh...where is Mary Hydeing her treasure? Event Cache

Avast Mates! Come join "Ol' Fancypants" Val Hawkins,  Hobblin' Louise Morgan, Pirate Quinn the Parrotless,  Blind Thomas Goldgrubber, "Fubar" Hillary Slaughter, Pantin' Ramona Scabb, Cap'n Val Backstabber, and Pirate Bud the Drunk t' start th' hunt fer th' Lost Treasure o' Mary Hyde.

We shall meet at th' posted coordinates from 6:30 - 8:00 pm t' rack our brains, swap stories ‘n feed our bellies if ye choose. Don't be late or left out o' yer share o' th' lost booty. We may ‘ave some o' our own Corsair booty and such And dern't forget that ye earn a souvenir o' yer own just fer attendin'. See if ye can figure out who be who!