For most of the 20th century, this constituency and one of its successors was held by four members of the Guinness family. When Rupert Guinness was elevated to the Peerage upon the death of his father, he was succeeded by his wife, Gwendolen.
This political district has been consistently represented by members of the Guinness family for most of the 20th century. Following Rupert Guinness' ascension to the peerage after his father's demise, his wife, Gwendolen, took over the seat.