Bert Wiseman, NDS Chairman, his winning exhibit in the Vincent Parker, NDS Show 1988 (DS 00139) (NDS)

Cor (left) and Jan Geerlings, Midland Dahlia Society visit to Holland, Sept. 2008 (David Brown)

Cor (left) and Jan Geerlings, Midland Dahlia Society visit to Holland, Sept. 2008 (David Brown)

Cor Geerlings (left) and David Reid, Midland Dahlia Society visit to Holland, Sept. 2008 (David Brown)

Cor Geerlings (left) and David Reid, Midland Dahlia Society visit to Holland, Sept. 2008 (David Brown)

Mrs Margaret Gitts, senior member of the Gitt's family, Swan Island Dahlias, USA 2012 (David Brown)

David Reid of the NDS presenting Cor Geerlings with his NDS Silver Medal, Holland 2012. (David Brown)

David Reid of the NDS presenting Cor Geerlings with his NDS Silver Medal, Holland 2012. (David Brown)

Left to right, David Reid (NDS), Cor Geerlings, Elly & Jan Geerlings & Don Sutcliffe (NDS) Holland 2012 (David Brown)

Stan Hall of Halls of Heddon Nursery in 2013 (David Brown)

David & Leone Smith, Chimacum Dahlias with Dahlia Chimacum Davi, winner NDS Silver Medal, ADS Show, Portland USA 2012 (D.B.)

Dahlia ' CHIMACUM DAVI ' (Min.B.) Smith D.& L USA Winner of NDS Silver Medal, ADS Show, Portland, USA 2012 (David Brown)

Lupita, President of the Mexican Dahlia Society, ADS Show Tacoma 2014 (David Brown)

Steve Santose, Winner NDS Silver Medal 2014 with Dahlia Edna C, ADS Show, Tacoma, USA (David Brown)

Dahlia ' EDNA C ' (M.D.) Comstock USA 1968 NDS Silver Medal ADS Show, Tacoma, USA 2014 (David Brown)

Les Jones with his winning exhibit of Large Decorative Dahlias at Harrogate Show 2010 (David Brown)

Left to right, Dick & Danielle Parshall (USA), David Brown (NDS), Michelle & Al Kaas (USA), Harrogate Show 2013

Left to right, Dick & Danielle Parshall, Michelle & Al Kaas, visitors from the USA to Harrogate Show 2013

Left to right, Dick & Danielle Parshall (USA) David Brown (NDS), Michelle and Al Kaas (USA), Harrogate Show 2013

The Reverend Brother Simplicius raiser of Dahlia ' Silver City ' (L.D.) and others (NDS)

David Brown's National Dahlia Collection Display at Hampton Court Show 1997 with Cultivar Union Jack

Jan Geerlings and Elly, Geerlings Nursery, Heemstede, Holland 2015 (David Brown)

Cor Geerlings, picture reproduced from ones on display at Geerlings Nursery, Heemstede, Holland

Cor and Jan Geerlings, picture reproduced from ones on display at Geerlings Nursery, Heemstede, Holland.

Cor (left) and Jan Geerlings, picture reproduced from those on display at Geerlings Nursery, Heemstede, Holland.

Cor Geerlings with his NDS Silver Medal, from picture reproduced from those on display at Geerlings Nursery, Heemstede, Holland.

David Hall with Dahlia Polar Sight 1966 (Stan Hall, Halls of Heddon)

Donald Armstrong, raiser of Primrose Diane, with the Fred Oscroft trophy in 1979

Evelyn and Derek Hewlett (DS. 03129) (NDS)

Ken Greenway of Accent Dahlias, Snohomish, Washington State USA 2012 (David Brown)

Art Chmura judging Table Top Show at Les & Viv Connell's, Sumner, USA 2012 (David Brown)

Les Connell, Julie Chmura and Viv Connell, Table Top Show and BBQ, Sumner, USA 2012 (David Brown)

Eric Toedtli in his Dahlia Garden, Vancouver, Washington State, USA 2012 (David Brown)

Max Ollieu thanking visitors after viewing his Dahlia Garden, USA 2012 (David Brown)

Mike Riordan in his Dahlia Garden, Portland, Oregon, USA 2012 (David Brown)

Mark & Laura Oldenkamp with daughter Heidi, Canby, Oregon, USA 2012 (David Brown)

Shirley Bankston making up her Dahlia Bouquets, Portland, Oregon, USA 2012 (David Brown)

Ted & Margaret Kennedy of Hollyhill Dahlias, Oregon City, Oregon, USA 2012 (David Brown)

Roland Verrone and David Brown at Yelm, Washington, USA 2012

Sandy & Roland Verrone, 'Yelm, Washington State, USA 2012 (David Brown)

Left to right, Roland Verrone, Steve Cox (Aus.) Ken & Marilyn Walton, USA 2012 (David Brown)

Ian Treseder in his Dahlia Nursery in Wales, E.C. Member. (DS.00003) (NDS)

Clyde Chappell with Dahlia ' SHY PRINCESS ' (M.C.) (White) Fleckney UK 1976 London Show 1981 (NDS)

George Drayson, E.C.Member (DS. 00007) (NDS)

Clacks Farm in 1976, Arthur Billett and Pi Ensum (DS.00009) (NDS)

John Crutchfield cutting Dahlias on his nursery, E.C. Member (DS.00012) (NDS)

John Brown cutting Dahlia Grace in his nursery Brown & Such of Maidenhead (prior to 1960) (DS. 00016) (NDS)

June Davis winning the Clara Lawson, NDS Show, London 1978 (DS. 00017) (NDS)

George Drayson, E.C. Member and Dirk Maarse of Bruidegom's Nursery, Holland (DS. 00020)

Phil Damp (Gen. Sec.) & Liz Damp (DS. 00022)