Billy Connolly told the story of once meeting Donnie B McLeod, the late BBC presenter, and finding out that there were so many of them with the same name on Lewis, that their middle name was just a letter so as to distinguish them. Donnie A, Donnie B, Donnie C etc.
Extract from Wikipedia appears to confirm this.
Born
Donald B. MacLeod
July 1, 1932
Stornoway, Isle of Lewis, Scotland
Died
September 6, 1984 (aged 52)
Occupation
Television presenter