Complex sentence: When Lars died in 1936, his eldest son Harold took over as managing director of the newly formed company, Lars Halvorsen Sons Pty Ltd and continued as designer for most of the wartime vessels as well as commercial and pleasure boats.
Split into simpler sentences: When Lars died in 1936, his eldest son Harold took over as managing director of the newly formed company, Lars Halvorsen Sons, Pty. Ltd. and continued as designer for most of the wartime vessels as well as commercial and pleasure boats.