The only Democrat elected from that district in its ninety-year history, Jamieson served only a single term.

In a year of strong Republican victories in Iowa (led by presidential candidate William Howard Taft), Jamieson upset longtime Republican Congressman William P. Hepburn, winning majorities in eight of the district's eleven counties.

Citing health reasons and the costs of keeping his seat, he declined to be a candidate for renomination in 1910.

He was editor of The Window Seat, a weekly syndicate letter for country newspapers, from 1925 until his death in Washington, D.C., on November 18, 1949.

This article incorporates public domain material from the Biographical Directory of the United States Congress