Skillicorns are found in the IOM but are you sure there is a connection here? According to J J Kneen's Personal Names of the Isle of Man, the name originates in Lancashire. I quote "Baines History of Lancs vol ii, p 79, states that Scillycorn of Scillycorn was one of the Lancs families between Henry VII and William III. John Skillicorne held the manor of Preese and lands in Newton, Warton, Preston and Lancaster, he died in 1478. The first of the family named by Fishwick (..History of Kirkham, Chatham Soc., vol xcii) is Adam de Skillicorne who had a son living in 1400 named Edmund. The sixth generation from this Adam was Nicholas Skillicorn, whose dau. Joan by his wife Margaret Moore of Bank Hall, Liverpool, mar. John Christian fifth of Milntown. The Skillicorns of Skinscoe, Kirk Lonan, were direct descendants of this Lancs family". Hope the foregoing is of some help to you.