Thank you, I think exactly the same thing about this : It seems to be Richard, but I would like to be sure it could not be Robert... and for the last letters, I think it could be 'Jr' for Junior.
It's a letter from 1826, and I don't know if it's common at this period to write 'Jr'.
And I've got this other one from 1827. For me, it could be the writting of the same person, but could you tell me what you think about this? But now, there are no 'Jr'...