Hi Patricia,
I am the administrator of the Rootsweb PIGGOTT (all variants) surname list. I have posted your query, plus some information I was able to quickly find, on our list and queried our members for possible additional help. Here is the URL so that you can see the information and also search our archives.
http://lists.rootsweb.ancestry.com/index/surname/p/piggott.h...Regards, Joe Bissett
jbissett@hot-peppers.com