Wylie Blue was born Alexander Wylie Blue in Campbeltown, Argyle on 11 May, 1869. His father was William, a master baker and his mother Mary Wylie. He was one of at least six siblings. He attended Glasgow University and by 1901 he is a Minister in the United Free Church in Glasgow’s Blythswood. In 1902 he married Dora Gow.
In 1916 he moved to Belfast, to the post of Minister of May Street Presbyterian Church. A couple of years later he served in France with the YMCA. May Street Presbyterian is in Belfast City Centre and in the early 20th century was a popular, fashionable. well-attended Church. Wylie was an eloquent and admired preacher who, as his career progressed, toured North America and Australia. He was politically active on the Unionist side of the complex politics of Ireland in the early 20th century, in 1919-20 he visited the United States and Canada as a member of the Ulster Delegation in opposition to Home Rule. He was an intellectual and literate man with a deep interest in Campbeltown local history and Scottish dialect. He was the author of at least one novel, The Quay Head Tryst (1917).
He had five daughters Mabel, Nan, Maisie, Ailsa, and Dora. Mabel married a Northern Ireland clergyman The Rev. Dr. Robert John Laughlin and eventually settled in the USA. Wylie Blue stayed in Northern Ireland until his death at his home in Cyprus Avenue, Belfast in 1956.