[4][2] In 1972, Ferguson lost the Democratic primary in his district to Brenda Itta, but won reelection as a write-in candidate with 51.5% of the vote.

Ferguson was elected to the Alaska Senate in 1974, once again succeeding Willie Hensely, who represented the same region prior to redistricting.

He also played a key role in establishing the Bush Caucus as a powerful force in the Alaska Legislature.

[2] In addition to his political offices, Ferguson held leadership positions in various organizations throughout his life, notably serving as president of the Alaska Federation of Natives and chairman of NANA Regional Corporation.

Governor Frank Murkowski ordered flags lowered to half-staff in Ferguson's honor.