Arne Lein is not mentioned in the provided text about Namsos Municipality, Norway.
The provided text details the geography, history, and administration of Namsos Municipality in Trøndelag county, Norway. It describes the municipality's size, population, and administrative center, Namsos town, which is named after the Namsen river. The text outlines the historical mergers of municipalities that formed the current Namsos Municipality, including the incorporation of Fosnes and Namdalseid in 2020. It also touches upon the local government structure, transportation links, and the municipality's climate. The coat of arms, featuring a moose head, symbolizes the region's connection to the forest-rich Namdalen area. The history section highlights the town's origins related to sawmills and its vulnerability to fires, including one during World War II. The geography section describes the coastal location, islands, lakes, and the prominent Namsen river, known for its salmon. The text also lists several notable individuals associated with public service in the region, such as Jørgen Johannes Havig, Fredrik Havig, and Osborne J. P. Widtsoe. However, the name Arne Lein does not appear anywhere within this information.