Pedigree of Tough as Nails

Horse	Parents	Grand-Parents	Great Grand-Parents	Great-Great Grand-Parents
Tough as Nails Quarter Horse	Foundation	Foundation	Foundation	Foundation
				Foundation
			Foundation	Foundation
				Foundation
		Foundation	Foundation	Foundation
				Foundation
			Foundation	Foundation
				Foundation
	Foundation	Foundation	Foundation	Foundation
				Foundation
			Foundation	Foundation
				Foundation
		Foundation	Foundation	Foundation
				Foundation
			Foundation	Foundation
				Foundation