Simplify the following text for a Grade 6 native English-speaking person.
Original: During the period 1900-1930s the main operator servicing the area was the Huon , Channel & Peninsula Steamship Company , owners of several vessels including the extant M.V. Cartela .
Simplified: From 1900 to the 1930s the main shipping company was the Huon , Channel & Peninsula Steamship Company . They owned several ships including the M.V. Cartela .