Pedigree Chart of Silverhouse, 2 W-P, George H. Johnstone, England, 1959

Blizzard
Seedling
unknown
Evening
Silverhouse
Silver Coin
N. poeticus var. hellenicus
Ann Abbott
Minnie Hume
Lord Kitchener
Weardale Perfection
Mrs. R.O. Backhouse
3W-R seedling