mchenry was john merryman. an officer and pro-confederate horse unit called the baltimore county horse guards. and even though the unit had been disbanded, they had a reputation of being pro-southern. he was arrested under the pretext of training pro confederates on his property. so this cavalry, evidently drilled some on his property. merryman was brought here and held in one of these rooms perhaps for a period of time this very room. word got out, and the chief justice of the supreme court at that time, who happened to be in baltimoredemned the decision. he did it as more of a local judge in chambers. but he actually issued a stern condemnation on president abraham lincoln saying lincoln did not have the power to suspend the writ of habeas corp corpus. and not only he himself had that power, but delegated that power to other union officers in the area. and in clear violation of the constitution of the united states. not long thereafter, a federal marshal taking his orders came to ft. mchenry to demand the rel