Complex sentence: From 1913 to 1923 he was an attorney in the Royal Norwegian Navy, from 1924 to 1925 he was a legal consultant and from 1925 to 1935 he headed the quartermaster corps of the Royal Norwegian Navy with the rank of Commander.
Split into simpler sentences: From 1913 to 1923, he was an attorney in the Royal Norwegian Navy. From 1925 to 1935, he headed the quartermaster corps of the Royal Norwegian Navy, with the rank of Commander.