Tom Lennie (see below) has found reference to revival on the island in 1860 and 1874. The Baptist Church was the main denomination involved in the revivals, particularly in 1885,1895, 1898, 1901-3 and others to 1914. The 1887-8 revival was mainly in the Free Church. There was another general revival in 1922-4.
For more information see, ‘Glory in the Glen,’ by Tom Lennie published by Christian Focus Publications, p78-83, 177-9.