Consists of three decades of correspondence between married Irish writers Sylvia and Robert Lynd, including many letters written from Ireland during the tumultuous early 20th century. The Lynds met in 1904 at the Gaelic League in London and began dating when Sylvia was 16. Spanning from 1905 to 1937, the collection consists of around 260 letters exchanged between the two writers, written in English and Gaelic, which chart their relationship from courtship to the later stages of their marriage. In total, there are around 80 letters from Robert to Sylvia and around 185 letters from Sylvia to Robert, one of which includes a poem she wrote. Much of the correspondence is weighted towards the earlier years of their relationship, with the largest number of letters present for 1908. The Lynds' letters discuss personal, private, political, and literary matters, including current reading and writing activities, literary gatherings, journalistic projects, financial anxieties, politics, family and personal concerns, and social gossip. Letters are often sent from addresses in Hampstead, Belfast, and Dublin, but others are sent from different locations in England and Ireland, as well as from Italy, France, and Spain. The Lynds' home at 5 Keats Grove was a popular social hub for literary and Irish communities in London from the 1920s through the 1940s. They entertained James Joyce, Louis MacNeice, A. P. Herbert, Rose Macaulay, Victor Gollancz, J. B. Priestley, Hugh Walpole, Naomi Mitchison, Olive Heseltine, J. B. Morton, Virginia Woolf, P. G. Wodehouse, and Arnold Bennett, some of whom their correspondence mentions.