Here are all the middle names used for [name]Bedelia[/name], [name]Bernadette[/name] and [name]Britannia[/name] found on the 1911 census and the CRBI.
[name]Bedelia[/name] [name]Adeline[/name]
[name]Bedelia[/name] [name]Alice[/name]
[name]Bedelia[/name] [name]Alma[/name]
[name]Bedelia[/name] [name]Ann[/name]
[name]Bedelia[/name] [name]Bridget[/name]
[name]Bedelia[/name] [name]Cecilia[/name]
[name]Bedelia[/name] [name]Christina[/name]
[name]Bedelia[/name] [name]Eden[/name]
[name]Bedelia[/name] [name]Elizabeth[/name]
[name]Bedelia[/name] [name]Ellen[/name]
[name]Bedelia[/name] [name]Elsie[/name]
[name]Bedelia[/name] [name]Florence[/name]
[name]Bedelia[/name] [name]Frances[/name]
[name]Bedelia[/name] [name]Gertrude[/name]
[name]Bedelia[/name] [name]Hannah[/name]
[name]Bedelia[/name] [name]Jane[/name]
[name]Bedelia[/name] [name]Kate[/name]
[name]Bedelia[/name] [name]Kathleen[/name]
[name]Bedelia[/name] [name]Mary[/name]
[name]Bedelia[/name] [name]Mary[/name] [name]Frances[/name]
[name]Bedelia[/name] [name]May[/name]
[name]Bernadette[/name] [name]Agnes[/name]
[name]Bernadette[/name] [name]Elizabeth[/name] [name]Mary[/name]
[name]Bernadette[/name] [name]Lavinia[/name]
[name]Bernadette[/name] [name]Lucy[/name]
[name]Bernadette[/name] [name]Magdalen[/name]
[name]Bernadette[/name] [name]Mary[/name]
[name]Bernadette[/name] [name]Rosalie[/name]
[name]Bernadette[/name] [name]Stella[/name]
[name]Bernadette[/name] [name]Theodora[/name]
[name]Bernadette[/name] [name]Veronica[/name]
[name]Britannia[/name] [name]Ada[/name]
[name]Britannia[/name] [name]Agnes[/name]
Brittania [name]Alice[/name]
[name]Britania[/name] [name]Amelia[/name]
Brittania [name]Annie[/name]
[name]Britannia[/name] [name]Arabella[/name]
[name]Britannia[/name] [name]Beata[/name]
[name]Britannia[/name] Boadicea
Brittania [name]Caroline[/name]
[name]Britania[/name] [name]Catherine[/name]
[name]Britannia[/name] [name]Christina[/name]
Brittania [name]Clair[/name]
Brittania [name]Dorothy[/name]
Brittania [name]Edith[/name]
[name]Britannia[/name] [name]Eleanor[/name]
Brittania [name]Elizabeth[/name]
Brittania [name]Ellen[/name]
[name]Britannia[/name] [name]Emily[/name]
[name]Britannia[/name] [name]Emma[/name]
[name]Britania[/name] [name]Ethel[/name]
[name]Britania[/name] [name]Evelyn[/name]
[name]Britannia[/name] [name]Florence[/name]
[name]Britania[/name] [name]Frances[/name]
[name]Britania[/name] [name]Georgina[/name]
[name]Britannia[/name] [name]Hester[/name]
[name]Britannia[/name] [name]Isabel[/name]
[name]Britannia[/name] [name]Jane[/name]
[name]Britannia[/name] [name]Jessica[/name]
[name]Britannia[/name] [name]Julia[/name]
[name]Britannia[/name] [name]Letitia[/name]
[name]Britannia[/name] [name]Louisa[/name]
[name]Britania[/name] [name]Mabel[/name]
[name]Britannia[/name] [name]Margaret[/name]
[name]Britannia[/name] [name]Maria[/name]
[name]Britannia[/name] [name]Mary[/name]
Brittania [name]Maryan[/name]
[name]Britannia[/name] [name]Matilda[/name]
Brittania [name]Maude[/name]
[name]Britannia[/name] [name]May[/name]
[name]Britannia[/name] [name]Minerva[/name] [name]Matilda[/name]
[name]Britannia[/name] [name]Minnie[/name]
[name]Britannia[/name] [name]Phoebe[/name]
[name]Britannia[/name] [name]Rose[/name]
[name]Britannia[/name] [name]Sarah[/name]
[name]Britania[/name] [name]Virtue[/name] [name]May[/name]
The complete Edwardian name lists can be found here: 1911 Census Name Combos - British Baby Names