As I hail from Wollongong, NSW, Australia; and as Wollongong did exist back before the 1860's, this was my premise. A father takes his dying daughter to the United States in a last ditch effort to save her. Disaster occurs crossing overland from San Fransisco, and they take refuge on the Shannon place in Sweetwater.
Warning, it can get a little soppy.
The Young Riders was a television series created by Ed Spielman.
An Ogiens/Kane Production in asociation with MGM/UA television.