It was clear from Maclean's preliminary collections (mainly from his own relations) in Raasay that there was still a great deal to collect and, in light of this, the Irish Folklore Commission took the decision in summer 1946 to send Maclean back to the Gàidhealtachd to that he could continue his work in the field. This was enabled by an official grant from the Irish State of £2,000. Over the next four and a half years (from June 1946 to the end of December 1950), while still in the employ of the Commission, Maclean worked assiduously in collecting a further nineteen bound volumes of lore (amounting to over 9,000 manuscript pages) as well as his diaries, amounting to a further five full bound volumes (over 2,000 manuscript pages). It was during this period that Maclean collected the longest story ever recorded in Scotland, the 58,000 words of Alasdair mac a' Cheird (Alasdair son of the Caird), told to him in 1949 by Angus MacMillan. This almost doubled the previous "record" of the 30,000 words of Leigheas Coise Cein (The Healing of Kane's Leg), recorded from Lachlin MacNeill, an Islayman, by John Francis Campbell and Hector Maclean in 1870.
