Exacerbating the usual delay of reliable news from the front, the government forbade transmission via telegraph of information about the campaign. Even reports already printed in East Coast newspapers couldn't be sent on the wires, effectively blacking out Chicago and other far-flung cities. That led to June 30 headlines that read, "Probably a battle fought yesterday," and "All war dispatches suppressed." The fighting had started four days prior.
Here's the colorful report of the Confederate rout of Union forces at Gaines' Mill, though a former Illinois governor, John Wood, proved his mettle. The story didn't appear in the Tribune until July 7, 10 days later.
THE CIVIL WAR: 150 YEARS AGO
Flashback is commemorating the War Between the States by reprinting portions of the news coverage from significant battles.