Pedigree of Derk
Derk United Kingdom 1974	Spot Black and White United Kingdom 1971	Sweep	Int. Dr & Scot Shep. Ch '68 Sweep Black and White United Kingdom 1965
			Judy Blue Merle United Kingdom 1965
		Lyn Black and White United Kingdom 1962	Rex Black and White United Kingdom
			Fly Black Tricolour United Kingdom 1960
	Fly	Tam	Scot. Nat. Dr. CH 1962 Mindrum Jeff Black and White United Kingdom
			Queen Black and White United Kingdom 1955
		Lass Black and White United Kingdom 1965	Int Sup Ch '65, Int Shep Ch '66, Scot Driving Ch '69 Wiston Cap Black Tricolour United Kingdom 1963
			Lassie Black and White United Kingdom 1960
This pedigree was generated by