LC3,
I would make the following comments on your list:-
Caledon -eligible but there are already 2 ulstermen in the order,the Duke of Abercrombie and Viscount Brookeborough
Cameron-too young
Carrington-GCVO is the normal honour for an LGC
Houghton-Already 2 CDS in the order.There have been no recent conflicts
May-eligible
Peel-eligible
Rosslyn-too young and insufficient time as Lord Steward
Walker-as for Houghton
Wellington-eligible
Hayman-eligible but does being First Lady Speaker merit it?Past Lord Speakers ie Lord Chancellors have received the order rarely
Come-too young
Norfolk-too young
By use of the word eligible I mean over 70 and serving in a position which has previously been honoured in that way.It’s unusual now to honour someone less than 70 because of their life expectancy which would limit the number of members if they are in the order too long.
Thomas I agree that Devonshire might be a pick as HM’s Ascot representative.I would also add Lansdowne whose wife is a Lady Companion to Queen Camilla
Richmond would also be suitable
Attenborough-too old and already has OM
We will wait and see.