Complex sentence: He was undeterred in his believe in an Elgin to Lossiemouth railway and addressed the board of the Elgin and Lossiemouth Harbour Company on the 3 February 1844 but it felt there was little need for railways north of Dundee, let alone one between the two towns.
Split into simpler sentences: He was undeterred in his believe in an Elgin to Lossiemouth railway and addressed a meeting of the Elgin and Lossiemouth Harbour Company on the 3 February 1844. The Harbour Company felt there was little need for railways north of Dundee, let alone one between the two towns.