your great-grangmother's first name was Rebecka and
her maiden name indeed was Samuel. It doesn't say where
she was from, but her last place of residence was the city of Kiel
on the Baltic Sea, approx. 120 K north from Altona (which is next to Hamburg)
I may add, that Moses Salomon's wife's first name was most likely not "Betty"
(compare the first capital letter with the last name Benjamin), the end to me looks more like
something like ".ettig", sorry not to be of more help.