Yes, this is my family. John MacLeod, Murdo's elder brother, was my grandfather. He married when he was in his 40s as he assumed responsibility for his mother and his siblings - their father, also Murdo, died some three months before Murdo's birth. I would know something of the MacLeod family history.
Interestingly I contacted a Mr Macgregor from Tolsta Chaolais I think in December (or very early January) looking for information on any descendents of Murdo and Effie's but drew a blank. This was, of course, shortly after you began making enquiries.
If your contact would like to get in touch I would also be very interested in knowing something of Murdo and Effie's family.