I read the page, and it says Rosapenna was by Tom Morris.
That's right, the relevant section is
The cyclist may then proceed to Rosapenna, where he will be able to study the many improvements made by the late Lord Leitrim, and enjoy the comfort of a wooden hotel erected by him on the Scandinavian pattern for the benefit of those tourists who may either wish to play golf on the links laid out by the veteran Tom Morris, to fish in the neighboring rivers and loughs, free to visitors at the hotel, or to enjoy the views disclosed from the summit of the Ganianmore Mountain.
The other cited source from "On an Irish Jaunting Car" is similarly lacking any mention of Harris.