Archibald Sinclair as well as being a "Gaelic" Printer (founder of the Celtic Press in Glasgow) with his business at Waterloo Street in Glasgow was the President of the Glasgow Islay Association. The Association was founded in the year 1862 its purposes being to gather and preserve the traditions, folk tales and poetry of Islay. The first meeting being held in the Garrick`s Hotel, Stockwell Street and presided by Archibald Sinclair. There would also be further meetings to help bring together natives of the island who were then resident in Glasgow and to also provide relief and assistance to the more less fortunate.

In later years the Sinclair Memorial Fund was set up with the yearly focus on purchasing Gaelic literature to encourage the studying of Gaelic in Islay schools.