The original name for the ice shelf after it was discovered in the late 1940s was changed from the Lassiter Ice Shelf

According to its Wikipedia entry:

"... the Advisory Committee on Antarctic Names (US-ACAN) approved the name Ronne Ice Shelf for this large ice shelf, on the basis of first sighting and exploration of the ice shelf by Ronne and parties under his leadership. The shelf is therefore named for Edith Ronne, the wife of Finn Ronne and RARE Expedition member."

This naming process took place after IGY during the late 1950s.

Today, properly it is attached to the Filchner ice shelf and is referenced as the Filchner-Ronne Ice Shelf.