Continuity mistake: Matthew invited Ingrid to eat with them in the previous episode. In this episode, he acts like he's meeting her for the first time.
Dr. Quinn, Medicine Woman (1993)
1 continuity mistake in Happy Birthday - chronological order
Starring: Jane Seymour, Joe Lando, Shawn Toovey, Chad Allen
Visible crew/equipment: While Dr. Mike is unsuccessfully trying to make supper Olive returns with the children, and after Olive says goodbye to them, when Dr. Mike closes the door a white T-mark is visible on the porch. (00:08:55)
Hank: Hey - ladies ain't allowed.
Dr. Mike: I'm not a lady. I'm a doctor.
More questions & answers from Dr. Quinn, Medicine Woman
Answer: A Cooper was someone who made various things out of wood including wooden caskets and even barrels.