Don: I was just pointing out that the written forms precede the printing press by centuries ... and seem to have survived past the general use of 'long s' in type. The general written form was similar to an 'f', but often with a forward looped ascender and a backward looped descender ... and thus no crossback at the centre of the letter.
To change tack: My previous posting should have read "I seem to remember reading (The Oxford Companion to Music - the old 1-vol. Percy Scholes version?) that Greensleeves ... " if I had not mucked up the HTML (which does hark back to manual printers' mark-up codes!).