'John Birmingham, Tuam & Ireland's New star @ by Paul Mohr, published 2002 by Millbrook Niva Press,
Toin an Gharrain, Cor an Dola, Co. Galway, has material about kirwans who married into the birmingham family, including the will of Sean Rua Birmingham, 19th sept., 1802, in which he bequeathed his estates in South America & the West indies to Robert Kirwan of gardenfield and Richard Kirwan, of the samw address. There is a large Kirwan mburial vault at Killbennan, Co. Galway.