Here are all the middle names used for Rufus found on the 1911 England and Wales census and cross-referenced with the CRB.
Rufus Abel
Rufus Adrian
Rufus Adolphus
Rufus Albert Edward
Rufus Alexander
Rufus Alfred
Rufus Algernon
Rufus Allen
Rufus Alonzo
Rufus Alphonso
Rufus Aneurin
Rufus Archie
Rufus Ariel
Rufus Arnold
Rufus Arthur
Rufus Augustus
Rufus Beckett
Rufus Benjamin
Rufus Bertie
Rufus Bertram
Rufus Cato
Rufus Cecil Adolphus
Rufus Charles
Rufus Chester
Rufus Christian
Rufus Claude
Rufus Claudius
Rufus Clement
Rufus Clifford
Rufus Conrad
Rufus Constantine
Rufus Cuthbert
Rufus Cyril
Rufus Daniel
Rufus David
Rufus Edgar James
Rufus Edmund
Rufus Edrick
Rufus Edward
Rufus Edwin
Rufus Emlyn
Rufus Ernest
Rufus Eugene
Rufus Evelyn
Rufus Everett
Rufus Frank
Rufus Frederick
Rufus George
Rufus Gilbert
Rufus Godfrey
Rufus Gordon
Rufus Gwilym
Rufus Harold
Rufus Harry
Rufus Haydn
Rufus Henry
Rufus Herbert
Rufus Hubert
Rufus Hugh
Rufus Isaac
Rufus Isidore
Rufus Ivor
Rufus James
Rufus Jeremiah
Rufus John
Rufus Jonathan
Rufus Joshua
Rufus Leonard
Rufus Leopold
Rufus Leslie
Rufus Lewis
Rufus Lionel
Rufus Llewellyn
Rufus Louis
Rufus Mark
Rufus Mars
Rufus Menelaus
Rufus Montague
Rufus Morgan
Rufus Morris
Rufus Nathaniel
Rufus Oliver
Rufus Oscar
Rufus Osmond
Rufus Owen
Rufus Paul
Rufus Philip
Rufus Randolph
Rufus Rees
Rufus Reginald
Rufus Reuben
Rufus Richard
Rufus Robert
Rufus Roger
Rufus Ronald
Rufus Rudolph
Rufus Samuel
Rufus Septimus
Rufus Sidney Herbert
Rufus Spencer
Rufus Stanley
Rufus Theodore
Rufus Theophilus
Rufus Thomas
Rufus Victor
Rufus Vincent
Rufus Vivian
Rufus Wallace
Rufus Walter
Rufus Wilfred
Rufus William