Leaders of the first Petsamo Expedition – Rovaniemi: 1918. Pictured left to right, front (in the white hat and coat): Thorsten Renvall (CO), Johan Bäckman, Julius Niemura, Jalmari Ruokokoski. Arvi Vinberg and Hjalmar Mehring. Rear: Ellen Id, Elvi Halle, Helge Aspelund, Ester Fogelberg, who is holding the flag created for the expedition by the artist, Jalmari Ruokokoski.