famous grand national character

my first is in the booth
but not in the chair
my second is in red rum
and also corbiere
my third is in canal turn
but not in melling road
my fourth is in bob champion
but not in the horse he road
my fifth is in the one who beats devon loch
and twice it appears in st valentines brook
my last is in hedgehunter
but not in the final bend
the man that you seek
is an aintree legend