shakky quit being a pirate 42 yrs ago prets
mihawk was 41 prets
shakky mihawk have similar side burns and ray's cloak looks a lot similar to what mihawk wears. Its definitely in the realms of possibility. if you want to go further check out the thoery that shakky is actually the former empress of amazon lily who left after neon. Its why they all know rayleigh . There was more info regarding the spider on her chest as well.