Hi there, I'm married to Michael Pluck and I have been researching the family tree for a few years. You may not have seen it yet but there is a very interesting website with lots of helpful info about the various branches of the family. Check out
www.pluckrose.org.uk The family name shrank to Pluck from Pluckrose in the Cambridge area in the early 1600s. My husband is descended from a line of Plucks in another part of London. Good luck.