Hi Frances,
Thank you for the information.
I think that's the same John (Armitage) Chippendall - he died in 1919 aged 83. He was an army man and served in India, so I guess its all the same family. His son Charles was, I think, in the Royal Engineers.
The only other bits I have are from FreeBMD - John was married in Pancras in 1864. There was a Charles born in West London in 1861, but my local church records have Charles' death in 1951 aged 70, so that might not be him.
I don't have a Charlotte!
Thanks again for your help.