Seamus Heaney has now carted off his archive to the National Library of Ireland (yes, he apparently delivered it himself); see, for example, Carl O'Brien's report in the Irish Times, Poetic justice for Heaney as gift of archive clears home of clutter.
(No report at the NLI site yet, but note that they do have a nice blog.)
(No report at the NLI site yet, but note that they do have a nice blog.)