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:
Austin James (Brady)
Barnaby Walter Arnold (Wilbur George Arthur)
Charles Inigo Robert
Edward Martin (Rosanna Patricia)
George Benjamin Peter (Jack Kenward)
Jack Michael
Ralph Christopher
Toby Morison (Grace Emilia Raven)
Girls:
Alice Josephine Maria (Daniel Johannes Maria & Nicholas Ignatius Maria)
Amarah Rose
Astrid Henriette Elizabeth
Athena Shaunagh Antonia (Orlando Frederick Charles)
Bella May
Belle Trixie Violet (Jack, Joshua James & Quinn Penelope)
Eilidh Kate
Elba Pear Rosemary
Florence Alice
Iris Emily (Edie Florence)
Ivy Mae
Rosalind Clara (Fionn Henry)
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.