Relatives living in Tromso today

Ciselia/Seselia Zacchariasdttr married Karl Henrik Pedersen on20th August 1882 in Tromso. Their children were Carl Sigfrid born 1882; Birger born 1884; Anna Nicoline born 1886; Henry Johannes born 1888; Arthur Nikolai born 1890; Ane Fredrikke born 1892; Maria Olava born 1895 and Sunniva born 1899. Henry Johannes married Anna Malfrid Lilleeng (Pedersdtr) on 25/9/1915. Their children were Agnes Cecile born 1916 died 1987; Gerd born 1919 died 2007 (and maybe Inger born 1926 died 2000?) Agnes married Erling Olav Klungseth. Gerd married Finn Wiggen - I believe their children are Kari (1942); Dag (1943); Jan (1947) and Anne (1951). I would like to contact any living relatives as I will be visiting Tromso in March. Can anyone help me to contact them? Many thanks