The Red Pontiac, is a red-skinned early main crop potato variety originally bred in the U.S., and is sold in the United States, Canada, Australia, Algeria, the Philippines, Venezuela and Uruguay. It arose as a color mutant of the original Pontiac variety in Florida, by a J.W. Weston in 1945.Wikipedia

A favorite among gardeners, consumers, and chefs. Delicious flesh is drier than most other yellow varieties, perfect for baking and mashing. Yellow flesh actually appears to be buttered. Bred and selected by AgCanada and the Ontario Ministry of Agriculture and Food in 1966. Excellent yields and a great keeper. 80-90 days.

Kennebec is a medium- to late-maturing white potato. It was bred by the USDA and selected by Presque Isle Station, Maine in 1941. Kennebec is not under plant variety protection. This fast-growing variety has high yields. It maintains good quality in storage and is grown for both fresh market use and chipping. Wikipedia