Jockey Pat Valenzuela among those celebrating on Thursday

Pat Valenzuela 57
Rider of Sunday Silence & Arazi

Tony Santic 67
Owner-breeder of Makybe Diva

Earl of Mansfield and Mansfield 63
Owner of Perth racecourse

Jeff Green 61
Clerk of the course at Windsor 2013-17

Richard Mildmay-White 70
Former director of Tattersalls

Thore Hammer Hansen 20
Apprentice with Richard Hannon

Jonathan Leech 52
Rider of Rotherfield Greys

Patrick Donaghy 33
Former Flat jockey

Dave Gutfreund 58
American journalist

Claire Lockett 58
Co-owner of Legends Gold

Sir Cameron Mackintosh 73
Former owner with Simon Sherwood

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