National Graves Association, O'Donoghue, F., & Heaney, S. (1961). Letter from Seán Heaney, National Graves Association, Donnchadh Mac Niallghuis Memorial Committee, Co. Donegal, to Florence O'Donoghue, enclosing a receipt for a donation to the Committee made by O'Donoghue, and concerning where to obtain a photograph of Donnchadh Mac Niallghuis.

National Graves Association, et al. Letter from Seán Heaney, National Graves Association, Donnchadh Mac Niallghuis Memorial Committee, Co. Donegal, to Florence O'Donoghue, Enclosing a Receipt for a Donation to the Committee Made by O'Donoghue, and Concerning Where to Obtain a Photograph of Donnchadh Mac Niallghuis. 1961.