[1] One of his grandfathers, Metford Warner, owned Jeffrey and Company the wallpaper manufacturers who printed William Morris papers.
This included pieces of vernacular furniture used in servants' rooms and country house offices, and obsolete agricultural tools.
He also had many private clients who included Peter Ustinov, Bruce Chatwin and members of the British royal family such as Princess Margaret.
[5] The Regional Furniture Society published his autobiography 'Roger Warner, Memoirs of a Twentieth Century Antique Dealer' as their journal in 2003.
[6] After his death at the age of 98 in 2008 his extensive antique collection was sold, with much press coverage, over four days at Christie's South Kensington and Brightwells in Leominster, grossing over £2,000,000.