The Amateur Swashbuckler feat lets you pick one 1st level swashbuckler deed, but what about 1st level deeds from swashbuckler archetypes. Could a character taking this feat take the mouser swashbucklers Underfoot Assault?
For a precedant I would compare this to the eldritch heritage feat and wildblooded sorcerer bloodlines. This would say no, base class features only, not ones modified by archetype.