Also GR2, are you familiar with the term "Dr of Saros and Surrogate"? - please see the image attached.
I believe this section reads...
Proved at London the 11th Feby 1839 before the worshipful Herbert James Dr of
Saros and Surrogate by the Oaths of Amelia Joseph in the will written Josephs/wise
the relict and Morris James Harris the Executors to whom admon was granted having
been first sworn duly to admon
London Curtain Road Shoreditch