Alexander Gilliland of Bellevue Borough, Pittsburgh, was born in Glasgow, Scotland on January 19, 1847 to James and Hellen McLaren Gilliland. He came to the U.S. in 1866, settling in Old Allegheny; in 1893, he moved to Bellevue. He was a retired contractor and president of Duff Patents Company, Inc. of Pittsburgh, and was treasurer of the National Mortar and Supply Company of Pittsburgh. He was a 33rd degree Mason and a member of Allegheny Lodge 223, F.&A.M., Bellevue Chapter 286 Royal Arch Masons; Allegheny Council 38, Royal and Select Masons; Allegheny Commandary 35, Knights Templar; Pennsylvania Consistory, Syria Temple, Masonic Veterans Association, Lambskin Club, Jesters, and the Imperial Council, A.A.O.N.M.S.
He died May 31, 1931 at the age of 85. He was survived by three sons, William Bald Gilliland, Walter A. Gilliland, and Robert M. Gilliland; 7 grandchildren; and a great-grandson. He was preceded in death by his wife, Elizabeth Bald Gilliland. Services were held at his late residence. Interment was at Uniondale Cemetery #1.
He served for some time as the Royal Property Man of the National Court, Royal Order of the Jesters. This was likely his link to Lou B. Winsor.