Charles is seen eating the escargot that caused him and Jonathan Garvey to walk out of the restaurant previously.
Around the 9 min mark, Caroline's fake bun is a different color than the rest of her hair.
In the opening sequence of the old Ingalls' place, Bandit's doghouse is missing from the yard.
Charles (Micheal Landon) appears to have been using hair dye as his hair is significantly less grey than in his previous guest appearances in season 9 and Look Back to Yesterday.
Charles suggests the town use his son-in-law's former law firm, Burton and Davis, to check out the deeds. Adam was not able to get a job at the Davis firm and opened up a solo practice in Walnut Grove.
Caroline is surprised at the size of the Wilder's house. However, it is only two miles out of town and certainly more than three years old (the time Caroline has not been back to Walnut Grove). Unless Ma has recently experienced amnesia, she should know that house at least from the outside.
Even though there was a court order to remove the citizens of Walnut Grove, the U.S. army could not enforce it. Minnesota was a state, which meant the Army would have illegally been used for law enforcement duties. County deputies or state police should have been sent in to enforce the court order.
Ear piercing was not a common practice among American women, especially in rural areas, during Laura's childhood and young adulthood (1870s-1920s). On Ma & Pa's first night back, Laura is seen wearing dangle earrings through pierced ears.
According to some sources , this movie takes place in the year 1901 , and the Wilder's are still living in Walnut Grove , but near the end of the 19th century and the beginning of the 20th century , the Wilder's were living in Missouri .
Charles asks the stage driver to drop him and Caroline off at Laura and Almonzo's house to save the driver a trip into town, but the stage would have to have to go into town anyway to drop off Coleson. Correction: Charles told the driver it would save Laura and Almanzo a trip into town, not the stagecoach.
Mr. Oleson tells Colson that Mrs. Oleson is in the hospital, and that they sure miss her around Walnut Grove. This seems unlikely given her penchant for gossiping, listening in on private phone calls, bigoted ways, lying, etc.
Nels and Harriet would not have been able to maintain their businesses if she had truly been in the hospital or under medical care for 6 months since she was not able to return home. Also while Nels was busy running the hotel and restaurant, Esther Sue was nowhere around and it seems nobody was running the store.
At the end of the movie when they detonate all the buildings, you see plywood flying around. With the time period of the show, buildings were not built with plywood yet.
After Montague gets beaten up by Lassiters thugs, the doctor says he has a couple broken ribs yet two days later, when Laura is packing up the house, Montague is wearing his suit with a button down vest looking none the worse for wear. In fact, later on, he is seen walking normally down the hill in front of the house, something he would not have been able to do with cracked ribs.
Montague plays Rimsky-Korsakov's "Flight of the Bumblebee." It was written in 1899-1900.
John Carter is seen with belt loops on his pants. Belt loops were not invented until 1922.
The Mesabi Iron Range (which Mr. Lassiter supposedly purchased and contained the town of Walnut Grove) is actually in northeastern Minnesota. Walnut Grove is in southwestern Minnesota.
The bush to the right of the school steps is a poisonous oleander. They do not grow in Minnesota.
Jack the stage coach driver and Charles act like they do not know each other but they have known each other for 10 years.
Strangely, Mr. Montague, who "can do anything", has no skills at self defense, and gets beat up by Lassiter's thugs.