hi David
I am back six generations at a marriage in 1705 just at the moment and am giving up for the night, having had a mixture of fun between the parishes, people who insist on having the same name while being born just days apart, LDS pedigrees skipping generations then having the gall to offer you CD GEDCOMs! etc etc
This should give everyone a laugh. It is from the Phillimore's marriage book for Cornwall:
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Marriages at Sancreed, 1559 to 1812.
NOTES-The following entries have been extracted from three Registers all of which are in an excellent state of preservation. The list of Marriages is continuous and apparently complete except from I647 to 1635.
The first Volume, which contains ail entries from x.559 to 1743 opens with three pages of cypher, the key to which is easily discoverable owing to the dates being given in the usual way. Thus :-T k q b o p n Cbpdbps & Zlsp Qbyqoo, Slopurbp 29 1695 is obviously Charles Trewren & Jone Argall, November 29, 1695, which entry is also found entered in its proper place. As the pages of cypher add nothing to the completeness of the record, they are omitted here, The second volume gives the marriages from 1743 to 1754 when it was superseded by Hardwicke’s register. The entries have been copied bv the Revs E. R. Nevill and T. Taylor, and are printed by permission of the Rev. John Stona, MA., Vicar of Sancreed.
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Now, I am betting that you are
really disappointed that all the old records aren't in a cypher! I can tell you that when someone transcribed the parish records for Guiseley and Yeadon in Yorkshire, the coding sequences they used to fit everything onto a limited size and number of pages per book almost baffled me!

I will send the info as soon as I can get a link into the visitations - might be tomorrow or the next day now.
All the best
Chris
PS Joseph Penrose was a tin miner. If he died in a mining accident, it should be recorded in a specialist source - if not genealogical, then perhaps at the Cornish Mining College in Camborne/Redruth.