Stuart's reply was logical and correct. My convoluted suggestion would have been to start at any wheel cylinder (right front would have been a good choice) and trace the brake line back to the master cylinder; however, this might have led the searcher in multiple directions.
Now that the question has been clearly answered in a few ways, here's another general suggestion: A Shop Manual is quite useful for anyone who owns an old vehicle, and the 47-55 Factory Assembly Manual is often quite useful (both are available from all the usual vendors in the Links section).
Tim