Please check if these have the same meaning.
a). no;
b). yes;
Salmons Brook is mentioned thus on Rocque 's map of 1754 , probably named from the family of '' John Salemon '' of Edmonton marked in 1274 .
Thus is mentioned on the map of Rocque of 1754 , probably from the family of John '' Salemon '' of Edmonton in 1274 , marked Salmons Brook .
a).