At 14:33 they show a close up of Mary and she has mascara on. There is no possible way she could have put it on herself being blind unless someone did it for her. Hester Sue is the only one who can see and wouldn't have time to do that for Mary.
At 37:28 Mrs Davis is playing croquet with Adam. They show Mrs Davis at the end post with 2 hoops before the post but at 37:32 Adam takes his shot and only goes through 1 hoop and hits the post. In croquet there is always 2 hoops right before the post.
If Mary had lipstick on in bed, then she have also had it on at that fancy lawn party.
Nellie is shown eating an ice cream cone, yet ice cream cones weren't invented until 1896.
At 41:05 Mary is seen with very curly hair on her pillow. She always had bone straight hair. Permanent waves weren't invented until 1905.