The book "The Lost Tribes of the Irish in the South. Address at the Annual Dinner of the American Irish Historical Society, January 6, 1917" is written by Irwin Shrewsbury Cobb. In his speech, the author explores the history of the lost tribes of the Irish in the south, revealing little-known facts and connecting them to the wider context of Irish history. Cobb examines the issues of migration, cultural heritage and community of the Irish in the south in an attempt to restore the missing links of history. His speech contains important reflections not only on the past, but also on the present and future of the Irish in the United States of America.