Anyone who listened regularly to the shortwaves back in the 1970s knew about Gilfer Associates of Park Ridge, New Jersey. They were a source of books, gadgets, and radios supporting the SWL habit. The company was run by Oliver P. (Perry) Ferrell and his wife, Jeanne. Perry was at one time the Editor of Popular Electronics Magazine.
I came across this recent blog post by Susan Ito, a former employee. It paints a nice picture of what is was like to work for the Ferrells as an after school employee.