His great-great-grandfather, Oliver A. Caswell, was a member of the Wisconsin State Assembly.
Halsan is Lutheran and is a member of the Fraternal Order of Eagles and Moose International.
Halsan was a member of the House of Representatives from 1983 to 1985 and of the Senate from 1985 to 1988.
He represented Washington's 20th legislative district in both cases.
This article about a politician from the state of Washington is a stub.