Continuity mistake: When Dorothy is doing laundry, she grabs a large piece of linen from the washtub, as Dr. Mike approaches and they talk about Dorothy hiring a caregiver for Loren, during his stroke. As Dorothy starts cranking the linen through the wringer, she stops to protest to Dr Mike about it but then turns around holding the wrung linen in her hand, though she hadn't finished cranking it out. (00:32:30 - 00:33:20)
Fifi's First Christmas - S4-E12
Continuity mistake: After Fifi has gone after the red scarf, Brian picks it up. In this wide shot, there is nothing on the left of Brian, however in the next close-up shot, there is a horse next to him.
Continuity mistake: When the whole town comes to support Matthew, we can see Hank and the reverend walking up behind him. A few seconds later, we see them both again, now they're walking with Colleen and Brian, and they have just come around the corner to see what all the fuss is about.
Visible crew/equipment: You see an automobile's headlights driving in the background when Hank is giving Dr Mike a hard time after his NaNa is brought to the clinic.
When a Child is Born (2) - S4-E28
Other mistake: Not to sound rude, but Jane (Seymour) was literally pregnant, in labor when her water broke, but no visible staining on her gown or on the wagon seat when Sully pulls her up.
Other mistake: Toward the end, when Mike is snuggling at the window with Sully, the candle on the wall near them isn't lit. But there is ominous light about them, obviously from the studio set.
The Tempest - S5-E10
Other mistake: Smoke from the burning Thanksgiving dinner starts wafting from the stove just moments before a strong wind from a coming storm blasts through the window. Yet somehow Michaela doesn't notice the smell just moments before going outside with Katie.
Other mistake: When Sully's wrist gets scraped while moving the examining bed off the wagon, Dr. Mike merely dabs over it with some disinfectant, instead of thoroughly cleansing the wound with a wet cloth before suturing like a normal doctor.
Continuity mistake: The gown Gilda S. Claire wears at her open concert is not the same one Emma made for her in the Mercantile.
Wave Goodbye - S6-E5
Plot hole: Dr. Mike and Daniel are discussing whether Princess Nizamoff is a fake or not, considering all the voices from the dead she performed during the séance. Yet Mike totally forgets that Mizamoff addressed her former medical professor in grave detail. Something the Princess would not have known otherwise.
Factual error: Marjorie's tragic death: The Quinn family has her funeral in the town cemetery, where she did not belong, instead honoring her death with a vigil, then transporting her body back to Boston, to be buried properly with her Quinn relatives: A common respect reserved for dignitaries; which technically the Quinn family was/is, and soldiers.
Plot hole: In the ending scene, Mike has a probable concussion from her fall, so Sully keeps her awake to prevent her slipping into a coma. They talk all night, reminiscing as Mike experiences periodic pain spasms. Their talk ends with discussion over them having another child, and then they instantly engage in an intimate moment, which would be impossible, considering her condition, and without further checkup from another doctor. Sometime later she is suddenly feeling 'cured', and they return home.
Answer: A Cooper was someone who made various things out of wood including wooden caskets and even barrels.