For diehard fans of acronyms—of which Presbyterians surely have more than their fair share—the Rev. David Gill has mined something of a GEM. Gill, who will retire on January 31 as executive director of Ferncliff Camp and Conference Center, says that throughout his 20-year tenure at the PC(USA)-related camp he has always “looked for things that can be financially self-sustaining for the long haul.”