Hi Alix,
I too am a Mortimer. Descended from William Mortimer and Frances Crispin. Our lot (Sam Mortimore and Mary Udy) came to Victoria in 1857. My Dad,(Bertie Keith) was Sam's grat-great grandson, he died in 2009 aged 93. My great uncle Percy Mortimer died aged nearly 101, so the Mort's are long livers.
Hope to hear from you in the future. I have another cousin (by marriage who has spent years tracing the Morts and she has gone back to 1100 odd. If you want I can let you have a copy of her data.
All the best,
Maggie Mortimer.