June “Montana” Lorentz was born in Butte, Montana, USA, hence her artist name. Her parents were Swedish and when her father died her mother returned to Sweden and Montana came to grow up in Boden. At the age of 18 she moved to Stockholm to study at various art schools. She also lived in Helsinki, Paris and Norway before her return to Boden in 1945. In 1941 she married the Norweigan artist Johan Lorentz. Throughout her artistry she varied her styles, techniques, motifs and she also taught art.