Answer:
1) The woman believes this because the date, the signature of Abraham Lincoln , notes made later after his death by A Lincoln.
2)He begins his investigation by kind of giving details of Lincolns life along with details after his assaination and what is wife did with all of his belongings. And how the sheet music could of possibly been one of the items given away and all of the possibiliest as to why and what was going on back then.
3) The analyst finds a pen lift and patching in the letter “A”. This means that the forger wasn't familiar with the style of writing and that they later went back in to add more ink and make it look more authentic.
4) Eugene Feild 11 is the son of the poet Eugene Feild and he is also best known for Little Boy Blue. He is connected to this music sheet because they were looking at different examples of forgery and Eugene Feild 11 was known for his forgery.
5) The forgers were found out in 1931 when Paul Angie told members of the Abraham Lincoln Association about the differences in the forged signatures and the real ones. However, the forgers never spent a day in jail for their crime.