Below is a round-up of the birth announcements from British newspapers. Sources include a national paper (The Telegraph, The Times) and a broad range of local newspapers from across England, Wales, Scotland and Northern Ireland.
Sibling names are in brackets. No official surnames are included; any name ending in a surname is actually a middle name.
Boys:
Adam Patrick (Benjamin George)
Albert Andrew
Casper William
Dylan David McLeod
Edward "Ned" George Valentine
Marlow Quinn (Chester Lucas, Jasper Hadley and Primrose Mabel)
Otis John Alexander (Rory Malcolm)
Otto Theodore (Allegra & Violet)
Rafe Alexander Vaughan (Rory Robert Doric & Caspian Hugh Charles)
Rollo Augustus Fuller (Juno)
Theodore "Teddy" Hugo (Henry "Harry" Charles)
Girls:
Alice
Araminta Lucy Myra (Wilfred Alan Charles)
Charlotte Olivia
Clara Florence (Emmeline Stephanie & Edith Violet)
Maeve Eleanor
Nancy Georgina (Nina Cecily)
Rosalie Sarah Marguerite (Barnaby Peter Kenneth)
Topsy Malory
Willa Florence Astrid (Thomas Frederick "Freddie" Charles Valerian)
Xanthia Yasmin
I cross-reference older BAs to find the full names of the siblings, however often they are missing (especially the eldest siblings, or for half-siblings) which explains why you will sometimes see something like: George Henry (Lucy, Emma & Jack Arthur). "Lucy" and "Emma" may well have middle names as well; I simply cannot find them online.