Late in the autumn of 1778 Brigadier-General John Campbell received a communication from Lord George Germain to proceed from the colony of New York to Pensacola, Province of West Florida. In this imperial province, which was bounded on the west by the Mississippi river, Lake Ponchartrain and the Iberville river, on the south by the Gulf of Mexico, on the east by the Apalachicola river and on the north by the thirty-first parallel but later by a line drawn eastward from the mouth of the Yazoo river, General Campbell was to take command of His Majesty’s troops. That the newly appointed leader of the imperial forces in West Florida was largely ignorant of local conditions is evidenced by a letter which he wrote Germain from Kingston, Jamaica, where he arrived on November 30..
Osborn, George C.
"Major-General John Campbell in British West Florida,"
Florida Historical Quarterly: Vol. 27
, Article 3.
Available at: https://stars.library.ucf.edu/fhq/vol27/iss4/3