The Boise Address That Put Big Bill Haywood on Trial

In the summer of 1907, spectators crowded into a Boise courtroom to watch William “Big Bill” Haywood fight for his life.

Outside, Idaho’s capital carried on. Inside the courthouse then standing at 711 W Idaho St, testimony about bombs, unions, informants and political power held national attention. The address had become a theater for one of the fiercest labor conflicts of its age.

The building dated to 1899. Known at the time of the trial as the Boise County Courthouse, it occupied a site whose memory reaches far beyond ordinary civic paperwork. This was where Haywood, a prominent labor leader associated with the Western Federation of Miners and the Industrial Workers of the World, faced a charge of orchestrating the assassination of former Idaho governor Frank Steunenberg.

Steunenberg had been killed by a bomb outside his home in Caldwell in December 1905. The murder grew from an already bitter political landscape. As governor, Steunenberg had confronted striking miners during violent labor disputes in northern Idaho, calling in federal troops in 1899. His assassination intensified a national argument over organized labor, industrial power and the reach of government.

By the time Haywood’s trial opened in Boise, the proceeding was more than a murder case. It was a public reckoning with class conflict in the American West.

The legal cast ensured that people paid attention. Clarence Darrow, already famous for defending labor causes, helped lead Haywood’s defense. William Borah, later a long-serving United States senator from Idaho, prosecuted the case.

At its center was Harry Orchard, the confessed killer. Orchard testified that Haywood and other labor leaders had directed a campaign of violence, including Steunenberg’s assassination. Because the prosecution depended heavily on the account of an admitted accomplice, his credibility became crucial.

Day after day, the courtroom filled with observers. Newspaper coverage carried the proceedings across the country, turning this Boise address into a point on the national map. Every challenge to Orchard’s testimony and every argument over motive fed the larger struggle over whether Haywood was a conspirator or a labor leader being made to answer for an entire movement.

The jury acquitted Haywood.

For organized labor, the verdict was received as a major victory. It also dealt a serious setback to efforts to connect union leadership directly to Steunenberg’s killing. The tensions exposed in Boise did not disappear, but the acquittal shaped how Americans understood unions, political violence and the uneven balance between workers and powerful institutions.

That is what makes 711 W Idaho St worth remembering. Buildings associated with courtroom history are often reduced to dates, architectural labels and lists of officeholders. But a courthouse is an archive made physical. Its rooms hold the consequences of testimony: who was believed, who was doubted and what the public came hoping to see.

The trial also shows why an address matters. “Boise” is broad enough to become abstraction. A street number restores scale. People entered through doors, found seats and watched lawyers argue beneath one roof. The national labor struggle, for several weeks, had a precise location.

Records tied to properties like this deserve careful stewardship. Historians, archivists and licensed real estate agents each help keep an address connected to what actually happened there, separating documented history from the loose legends that old buildings inevitably collect.

Readers can visit the Homestalgia record for 711 W Idaho St, Boise, ID and add to the memory attached to the place.

Then add the story of your own home—because history often survives first as an address someone bothered to remember.