From Guild Wars 2 Wiki
Memento Collector were NPC's that were a part of the Flame and Frost living story. They could be found scattered along the refugee travel routes in Wayfarer Foothills and Diessa Plateau.
- Refugee Mementos- add (1) point each to the Volunteer title
- Lighting the campfire at each stop will also add (1) point to the Volunteer title