To the best of my knowledge, in the Wilkes Land there is only one Russian base, the famous Vostok Station.
Wilkes Land is a vast antarctic district and, under the Antarctic Treaty, it is limited at the north by the South Indian ocean, and at the south by...
...the geographic South Pole!
So, the Vostok Station, at latitude 78ºS, is still considered to be situated in the Wilkes Land because of Vostok station's longitude (aprox. 106ºE).
Australia had formally claimed Wilkes Land as part of the Australian Antarctic territory.
From its Wikipedia entry: "Wilkes Land is named after Lieutenant Charles Wilkes (later a Rear Admiral), the American explorer who commanded the 1838-42 United States Exploring Expedition."
Ronae Wilkes's birth name is Ronae Wilkes.
Donna Wilkes's birth name is Donna Consuelos Wilkes.
Jamaal Wilkes's birth name is Jackson Keith Wilkes.
Reggie Wilkes's birth name is Reginald Wayman Wilkes.
The ice sheet that you mention covers 98% of the Antarctic continent, and it covers both areas you name.
Wilkes
John Wilkes Booth was in a family of famous actors. John wanted to make a name for himself and used the stage name of John Wilkes.
John Wilkes Booth
Wilkes was in command of the sloop-of-war USS Vincennesduring the Wilkes Expedition to Antarctica in 1839.
Wilkes
Annie Wilkes's mother's name is not mentioned in Stephen King's novel "Misery." She is only known as Mrs. Wilkes.