Starting at 44:51, Albert turns around while he is in the courtroom. You can see the actor had injured his chin. There is a lot of makeup visible and a healing wound under it.
Albert says "To Laura their brother. Grace too." He forgot Mary.
When Eliza Jane posts her family tree, she posts that her brother's name is Parley Day Wilder. It is actually Perley Day Wilder.
During Albert's flashback to being hit with a ruler Albert should have been younger.
At 5:08 when Albert and Simon are fishing, Albert says "oh that's a good one." When he says it his mouth doesn't move.
When Albert enters the court-room to meet his father alone, the flag behind the judge's table is a California-flag and not a Minnesota-flag.
It's seems somewhat doubtful that Albert's real father would not have questioned why neither the Judge or Charles did not consider it relevant to tell him that his son had gone blind since he last saw him.