Complex sentence: 'The first forces that joined him were forty footmen bought by the Laird of Duchrie'; these being cited by Louisa Graeme as representing the original Forty-Twa/Black Watch, "Or & Sable" 1903 fn.p.554.
Split into simpler sentences: 'The first forces that joined him were forty footmen bought by the Laird of Duchrie'. These were cited by Louisa Graeme as the original Forty-Twa/Black Watch, "Or & Sable" 1903 fn.p.554.