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:
Finn Frederick (Ava Elizabeth)
Frederick Alexander Brett
Jacques Patrick Charles
Orson David Leathes
Otis Angus Ziggy (Dexter George)
Toby Kenneth
Winter Errington Nicholas
Girls:
Camilla Caroline Sara
Cecily Nicola Anne (Xenia Ottilie Primrose)
Ella Constance
Eve Catherine (James Seago)
Imogen May (Olivia Margaret)
Imogen Rose
Sophie Jayne
Tessa Juliette (Alice Isabel)
Willow Orla (Archie Oliver)
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.