Dear Kay, This link takes you to the IGI Batch Numbers for Cornwall:
http://freepages.genealogy.rootsweb.ancestry.com/~hughwallis/IGIBatchNumbers/CountyCornwall.htm#SGo to St Sampson/Golant, and click on Batch P2331. You then get up a "Search Criteria" screen, where for this search you should put PENROSE in the box provided in the top right corner. Then "Submit" your query.
A number of entries for PENROSE will appear, and I what I normally do is to click on all within a reasonable date to check out the parents, and thus likely siblings of, in this case, Jane PENROSE. You will find two families of what I suspect were brothers.
Looking at the PENROSE name on the next IGI baptism batch (C22541), there are two further children of William and Mary.
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Marriage Batch M002232 is quite informative in that it does not show John or William PENROSE, which
suggests to me that they married elsewhere and then moved into the area to start their families. The Searles were from Lanreath.
Between the OPC lookup facility
http://www.cornwall-opc-database.org/ , the LDS website, and the filtered IGI batch facility from ancestry.com freepages, you should be able to track back to the PENROSE family of Broadoak or Braddock, which I have researched before, see topic:
http://www.rootschat.com/forum/index.php/topic,401001.0.htmlHave some fun with these resources, and also maybe also send a PM to the original poster of the enquiry.
All the best
Chris