Sean - Thanks.
On the 1880 map - The George is on the left hand corner of Rollestone Street and Winchester Street (this Building still exists today). Odd numbers go up the left hand side of Rollestone Street. About 2/3 of the way up towards Salt Lane - you should see that there is a passageway leading to some houses tucked back off the street. I reckon that this is French Court. (On the 1881 Map it is under the D of Edmunds).
The court no longer exists - eventually the houses here were demolished and up to 3-4 years ago, this was Salisbury Bus Station - itself no longer with us and now replaced by retirement age housing.
Kanskar