How do you look up a will in Maryland?
Find out which county the will was probated in, and go to the office ot the Clerk Of The Court and request to see a copy.
Lincoln was threatened by Maryland dues to its close proximity to Washington DC. He suspended Habeas Corpus in Maryland, which meant he could punish people without evidence, basically infringing upon the 4th amendment. He would have marylanders arrested for so much as speaking a word against the Union. For a historical parallel, look up the alien and sedition acts created by john Adams in the late 1700s.