Pedigree Chart of Knapdale, 1 W-W, Guy L. Wilson, Northern Ireland, 1969

Niphetos
Seedling
Trostan
Guardian
Brodie 1W-W seedling
Kanchenjunga
Askelon
Empress of Ireland
White Knight
Brodie 1W-W seedling
Conqueror
Kanchenjunga
Seedling 57/08
Askelon
Nevis
Knapdale
Beersheba
Tain
[(Weardale Perfection x White Emperor) x Beersheba]
Cotterton
(Blizzard x unknown)
Evening
Knowehead
King Alfred
Trostan
Askelon
Broughshane
Brodie 1W-W seedling
Kanchenjunga
Askelon