Global Font Declaration

Hi there,
I'm running into issues trying to allocate an ofTrueTypeFont, I have a font loading ok in my ofApp, but i can't seem to load the font in another class of mine, I keep on getting EXC_BAD_ACCESS errors but no "failed to load font" errors.

Is there a way to declare and use a font in all classes without having to redeclare it in all of my classes

Thanks,
Miles