Hi Mike ...
Unfortunately, the fiches held by my library are reproductions of the actual registers (not transcripts) and, additionally, there's no index! I therefore really can only search a maximum window ten years as these fiches can be extremely difficult to read.
Can I suggest that you post another thread asking if anyone has the Duns
Tew PRs in the hope of finding Ann's burial and a possible age. Alternatively, Duns
Tew is included in the Oxfordshire Burial Index - you can get a search done via the OFHS at
www.ofhs.org.uk (for a small charge).
Penny