Within Family Tree DNA there are numerous surnames that have been included in the "Taynish" blood line. Some have roots in Gigha and some do not. There was a Hector of Taynish who was the great grandson of the Hector of Taynish that you mentioned. His brothers were Daniel, Archibald, Neill, and one sister Margaret. Daniel went to Cumberland County North Carolina and is well documented there. His bother Neill emigrated in 1739 with Daniel and may be my progenitor. Neill left a will in 1764 that mentions sons Roger(this is my family), Henry, and daughters Catherine, Margaret, Flora, Mary, and Ann. His children could have been born in Gigha. Historians in Cumberland County NC have Daniel as being born in Gigha. Hector of Taynish had a son named Roger. My Roger and Hector of Taynish's son Roger are the only Roger McNeills in this period (late 1600s early 1700s) that I can find which prompted me to inquire in Gigha.