Diphtheria toxoid vaccine was not developed until the 1920s.
Becky has been the off screen nanny for Dr. Quinn for a year.
The town school house is a darker shade or red, almost brown. It was bright red before.
Loren calls Marjorie "Marjorie Quinn ". She must have changed her name back after her divorce.
Becky has not been seen recently, but her name has been mentioned regularly. Becky has been the off screen nanny for Katie for months.