 The name Rainier National Bank was adopted in 1974.Rainier Bancorp expanded into Alaska with the purchase of Anchorage's People's Bank & Trust in 1983 and into Oregon with the purchase of Gresham's Mount Hood Security Bank in 1986, expanding further in Oregon in 1986 with the government-assisted purchase of Portland's failed Lincoln Savings & Loan Association (not related to the Californian thrift of the same named that failed in 1989).After a brief bidding war with First Bank System, Rainier Bancorp.