The (UK) National Archives have over 80 Wills online for the surnames Plowman & Ploughman up to 1858. The will can be viewed/downloaded for a fee of £3.50 each. You can search for the wills available at:

http://www.nationalarchives.gov.uk/documentsonline/browse-re...

I have made a list, with links, of all Plowman & Ploughman will and they are at http://www.plowman.org under "Resources"

Yours aye

Stephen