Massive fan of the Hammond, many bands I was into in the 70’s, prog etc, I would particularly look at album covers and if the band used a Hammond, it would usually result in a purchase.
Don Airey - Rainbow etc
Gregg Allman - Allman Bros
Rod Argent - Argent
Brian Auger - Oblivion Express
Tony Banks - Genesis
Pete Bardons - Camel
John Evan - Jethro Tull
Georgie Fame
Matt Fisher - Procol Harum
Dave Greenslade - Greenslade
Ken Hensley - Uriah Heep
Tony Kaye - Badger
Ray Manzarek - The Doors
Ian McLagen - The Faces
Gregg Rolie - Santana
Dave Sinclair - Caravan
Dave Stewart - Egg
Manfred Mann - Earthband
Steve Winwood - Traffic