Conversation so far:
Why did Mike move to Alaska?
Alaska's voting age of 19, less than most other states' 21, played a role in his decision, as did its newness and cooler climate.
when did he move to alaska?
moved to pre-statehood Alaska in August 1956.
What did he do in alaska?
Broke when he arrived, he immediately found work in real estate sales until winter arrived.

Question: What did he do in winter?
Self-contained rewrite: What did Mike Gravel do in winter?