I like that this counters the cliche of granny in her prairie dress strumming gently from her rocker on the rough hewn mountain porch. Looks definitely around 1911 or so.
Randy, I love old photos of people playing instruments. Thanks for posting.
Great find and affirmation of your technique.
"The dulcimer sings a sweet song."
Great picture! I put on my magnifying specs to look at the dulcimer. Does it have full width frets? And is he strumming with his fingers?