When a mugshot of Donovan (Roy Barcroft) is shown, it reveals that he was prisoner 39013. This is the same prisoner number used in Daredevils of the Red Circle (1939) for Charles Middleton's character Harry Crowel.
In the 18th century, the King of Spain made a grant of about ten acres of land in the heart of this city to Don Quintus Quantero and his heirs for all time... now, that grant is still good, still legal - and I am one of the descendants of old Don Q.
In chapters 4 and 6, the same house is used in two different locations. Address 6712 can be seen on the mailbox.
If you're in the mood to rock out and laugh, here are five fan favorites.