 Ketzler left TCC from 1964 until 1969 to go back to Nenana, but other young leaders - Ralph Purdue, John Sackett and Tim Wallis - took over.In October 1966, TCC met in Anchorage with other Native leaders from around the state, including the active and vocal delegations from ANB and ASNA, and formed the Alaska Federation of Natives.In 1968, Alaska Natives were ready when oil was discovered on the North Slope.