I have all three of the latest additions by Douglas Richardson. I checked for Margaret Parr, Margaret Perry, and Roger Perry. The closest thing I found was a Reverend Roger Parry but he was born in 1548 and buried in 1634. His two wives were Mary Crosley and Eleanor _____, widow of ____ Ewins of Tarring, Sussex. Roger's father is listed as George Parry (or ap Harry.) Richardson had no listings for anyone by the name of Perry, and the only Parrs were very well known female Psrrs related to Catherine Parr. No Margaret, Maud, Meg, Mags, Matilda, etc. All of this comes from Vol II of Richardson's Royal Ancestry. I wish you luck… I know how hard it can be.