One entry on Mullan's list:
Claude and Eustace WoosterRead about all ten sets of identical twins on Mullan's list.
Perhaps the Weasley twins owe their love of practical jokes to Bertie Wooster's tormenting twin cousins. They pitch up at Bertie's place having been sent down from Oxford for pouring lemonade over the junior dean. When they fall in love with the same girl, Jeeves tells them she has sailed for South Africa, and they set off in pursuit.
--Marshal Zeringue