Dennis's Potato Gardens

Most years Dennis plants a potato garden. This year he has:
Pontiacs - top-notch mashing, thin red skin, shallow eyes, crisp white flesh
Kennebecs - large, light tan skin, uniform shape, fleshy insides, thin skin
Norkotahs - early maturing, released in 1987 by North Dakota State University, white flesh, long
                     oblong shape, medium to heavy russeted skin
Burbanks - large, dark brown skin, few eyes, dry white flesh