When Sully was telling Loren about all his family leaving him, he does not mention his brother.
Willow bark tea may not be the right medicine for a leg wound that won't stop bleeding. It contains the same medicine as aspirin which acts as a blood thinner.
Brian supposedly reads a book about flying machines in the 1870s, but the first flying machine was built in 1903.
Lauren sings the cowboy folksong Whoopie Ti Yi Yo also known as Git Along Little Dogies but that song was first recorded in 1929.
Miss Dorothy delayed printing the article about the land sale. It is unclear how the two men who turned Sully and Loren around learned about the land sale.
Dr. Quinn is being a hypocrite again. She normally encourages her adopted children to explore and learn. Now she does not want Brian to build a model flying machine.