Commercial embroidery of clothing has been done since long before other digital computer fonts.
Script styles that were developed independently of computer fonts.
See for example a font often called Embroidery Athletic Flair or EmbroideryAthleticFlair@80pct_6188.jpg"> which looks similar to the Harvard embroidery script except for the _H_, _M_ and _o_.
Variations such as Automotive Workwear Sport Script have the same _o_ as the Harvard letters.
There is probably a variation for medical uniforms.
Modern embroidery machines can also use conventional retail fonts converted to a format usable by the machine.
Don

As a substitute for non-embroidery purposes consider something like Monoline Script http://www.identifont.com/find?font=Monoline+Script&q=Go or Monotype Script http://www.identifont.com/find?font=monotype+script&q=Go
In both cases you can follow the links to "Show more similar fonts" to see more substitutes.
Don

Seems to be a cut-throat business http://typophile.com/node/49657
Making an embroidery font http://typophile.com/node/92972
Don