Martha GUPPY mother of Robert b1822

[Majge]

Have hit a brickwall   

I have a Martha Guppy listed as mother for a Robert Guppy:

Vital records index FHL Film 1279500
Gender:Male
Christening date: 31 march 1822
Recorded in: Hawkchurch, Dorset
Mother: Martha

after contacting the OPC for Hawkchurch, she was able to determine that Martha was an unmarried mother, but could not locate any record of Marthas birth,marriage, death etc.

So if anyone has come across this Martha born early 1800's (presumably)
Any info would be much appreciated 
Thanks