We got it from an English group, The Committee Band. Their website say this about it:
“From På bar gärning by Kangas Spelemän from Finland. If our uneducated attempt at translation is correct, this mazurka comes from Pertti Vuomajärvi, one of the great old Lapp melodeon players who was born in 1894.”
I also found this youtube:
Which in the
description has info about the guy in Swedish, which can be translated with an
online translator.