His name is Thomas Johan Hendriksen.
More specifically he was born in the village of Árnafjørður on the island of Borðoy, which as you mentioned is one of the Norðuroyar (Norderøerne is Danish).
Norðuroyar are the 6 north-eastern most islands of the Faroe Islands.
May I ask if you have any relations with TJH? He was my great-great-grandmother's half-brother, so it isn't too far away.