Complex sentence: He served with the 1/6th (Morayshire) Bn, the Seaforth Highlanders, 51st Highland Division and joined the battalion at Elgin in July 1914.
Split into simpler sentences: He served with the 1/6th (Morayshire) Bn, the Seaforth Highlanders, 51st Highland Division. He joined the battalion at Elgin in July 1914.