Was the writ of Habeas Corpus suspended during the civil war bvy federal gov?

A Maryland state legislator, John Merryman, was arrested by Union forces during the Civil War and charged with hindering the movement of Union forces. Merryman's attorney filed a writ of Habeas Corpus in response. President Abraham Lincoln decided to suspend the rules as a method of suppressing the rebellion in the Nation. The suspension was in effect until rejected by the Supreme Court, 5 years later.