Pat and Jim have been working on the second half of the 1700's, so a useful place to start would be around 1800 working forwards. The film numbers concerned start at 0106233 and 0106407. Most of these years have about 20 or 30 already done, some significantly more. A list in pdf form of what has been done is available at www [dot] lawsonsiom [dot] freevar [dot] com from the chronological indexes button. The list was updated in April 2010 and there will have been very few new submissions for this period since.