Thanks for another good idea. I shall certainly do that.
In the meantime, I have been doing my best to read the will of Elizabeth Phipps died 1773 Mile End.
The main points I picked out from it were:
1. This is Elizabeth widow of John the apothecary rather than her mother in law Elizabeth Warner who married John the plasterer.
2, She was to be buried in Bunhill Fields as close as possible to her husband (whose burial record I have not yet found). (This Elizabeth was buried there the same day that her will was proved, 17 June 1773)
3. She wanted her nephew, John Jennings I think, to be her undertaker. I still haven't found this Elizabeth's maiden name or details of her marriage. Obviously (if I have read correctly) it was either Jennings or she had a sister who married Jennings, or perhaps her husband had a sister who married Jennings.
4. She appoints her son, John Warner Phipps (confirmation that her mother in law was indeed Elizabeth Warner), her nephew Robert Phipps junior of Walthamstow (the person with whom we started, the upholsterer) and Mr Thomas Slack Sugar Refiner (news to me) of Goodmans Fields (he married her niece, Elizabeth Maria Phipps, sister or Robert Junior of Walthamstow) as her executors.
5. Their main duty is to hold some investments in trust for her grandchildren, Warner Phipps and Elizabeth Maria Phipps, children of John Warner Phipps, paying the dividends to John Warner Phipps to pay for their maintenance and education and dividing the principal equally between the two of them when they reach the age of 21. (Then there is lots on what happens if one or both dies or her son has other children before then.)
6. In the event, only the son John Warner Phipps takes up the role of executor.
There is still quite a bit that I can't read, so I may have missed something.
I can also see the will and death record of the grandchild Warner Phipps, proved 1828. He was born in 1768 and became secretary of the Albion Life Assurance Company. I haven't found any other record of his sister or any record of his mother.
Thanks again for all your help.
Alan