Poor Mary

It seems like every tragedy to ever befall walnut grove happens to her. Her finance moves to Chicago & cheated on her, she almost died from a horse kick, she was sent to a town full of religious nuts & branded the town jezebel, she lost her sight, lost the blind school in Dakota, lost her baby, almost died in a carriage accident, 2nd school burned down & she lost another baby. Does poor Mary ever catch a break on this show