Hi Frances, I"m forgetting the Rushen Mylreas for a while, and focussing on Malew. I'm reasonably confident that, if nothing else, I've got the family of John Mylrea & Elizabeth Shimmin as sorted as I can without further info on Charles1 & 2. Other things:
(1) I have digital images of four Mylrea Malew sales, and notes of a further 12 (none of which are on your list I'm sorry to say). Two are on website already; I'll transcribe the two in the next 24 hrs in put up on site
(2) Catherine Mylrea als Bridson died 1688 so she cannot be the aunt who lent money to Charles1. She has a will which I have not copied. I think that the 1714 Sale I am yet to transcribe is her husband William and that he died in 1718 (I don't have his either but one available). It's like a neverending detective story, this lot.
I"ll be at the Archives 11th June for 5 weeks.