There is a published pedigree for MASCALL of Plumpton in "Sussex Genealogies, Ardingly Centre" by John Comber which goes into a great deal of detail concerning the family in the 16th Century. I couldn't see a reference there to a Leonard MASCALL, but I did skim the pages fairly quickly. If you would like me to send you an extract from this book as a *.pdf file, please contact me off-List at woolgar@one-name.org . Best wishes Marion Woolgar Bognor Regis, West Sussex SFHG NO: 3323