This letter is intriguing because it appears Isaac's mother has a sister. I could not find her with internet, but I did find Combemartin, England in Google Maps. If someone knows anything about her please let me know.
Combmartin Aug 20th 1879
Just a few to tell you that I can’t do nothing toward any money before the copy of the will come down[.] then I will sent and tell you all petuclers [particulars]I have[.] [page 2]Sent two cards[.] Please to sent your mother one hand the other keep yourself[.] My adress is Betsy Ley Combmartin cit Barnstaple Devon[.] we are very glad to hear that your mother got out alright[.] I am very sorry to hear that you were out of work[.] we al linjoy a very good health[.] I hope [page 3]this will find you al in good health[.] I have nothing more to sat at present. From you Loving aunt B Ley