Twenty Years A‑Growing is a celebrated memoir of childhood by Maurice O’Sullivan, written in English from Irish life and tradition. Born in 1904 on the Great Blasket Island off Ireland’s Dingle Peninsula, O’Sullivan recounts his early years in a tightly knit Gaelic‑speaking community largely unchanged by modernity. Drawing on folk tales from his grandfather, he evokes the rich oral storytelling tradition of island life before its evacuation in the mid‑20th century and the fading of an age‑old culture. With warmth, humour and poetic rhythm, the book captures a vanished way of life and a vibrant cultural heritage that was largely foreign to urban readers at the time.