Allerton, a township in Lancashire, with a railway station, 4 1/2 miles SE of Liverpool. Acreage, 1586 ; population, 914. Here are Allerton Hall, Allerton Priory, the famous Allerton oak, and the ancient monument of Calder Stone, supposed to be Druidical. Allerton Hall was at one time the seat of Mr Roscoe, author of the " Life of Lorenzo de Medici."