Lyall Islands is a group of four islands, Unger

Unger Island

Unger Island is a small, ice-free island of Antarctica. Lying 4 miles to the southeast of the Cape Hooker, it is the westernmost of the Lyall Islands — at Latitude 70° 41' 00.0" S , Longitude 166° 55' 00.0" E....

, Surgeon

Surgeon Island

Surgeon Island is the largest of the Lyall Islands, lying 4 miles ESE of Cape Hooker off the N coast of Victoria Land. Mapped by USGS from surveys and U.S. Navy air photos, 1960-63. The toponym conforms to other names in the island group which, along with Cape Hooker, have been named after surgeons...

, Novosad

Novosad Island

Novosad Island is a small, ice-covered island, one of the Lyall Islands, lying 4 miles NNE of Cape Dayman, off the N coast of Victoria Land. Mapped by USGS from surveys and U.S. Navy air photos, 1960-63. Named by US-ACAN for Lt. Charles L. Novosad, Jr., USN, Medical Officer at the Naval Air...

 and Hughes

Hughes Island

Hughes Island is a small ice-covered island, the easternmost of the Lyall Islands, lying just outside the E part of the entrance to Yule Bay, Victoria Land. Mapped by USGS from surveys and U.S. Navy air photos, 1960-63. Named by US-ACAN for Lt. Ronald M. Hughes, USN, Medical Officer at McMurdo...

, lying just outside the entrance to Yule Bay

Yule Bay

Yule Bay is a bay indenting the coast of northern Victoria Land between Cape Hooker and Cape Dayman. An inner portion of the bay is circumscribed by Bates Point and Ackroyd Point. Discovered by Captain James Clark Ross, 1841, who named it for Henry B. Yule, Second Master on the HMS Erebus....

, Victoria Land

Victoria Land

Victoria Land is a region of Antarctica bounded on the east by the Ross Ice Shelf and the Ross Sea and on the west by Oates Land and Wilkes Land. It was discovered by Captain James Clark Ross in January 1841 and named after the UK's Queen Victoria...

. Discovered by Capt. James Clark Ross

James Clark Ross

Sir James Clark Ross , was a British naval officer and explorer. He explored the Arctic with his uncle Sir John Ross and Sir William Parry, and later led his own expedition to Antarctica.-Arctic explorer:...

, 1841, who named the group for David Lyall (1817–1895), MD, RN, FLS, Asst. Surgeon on the Terror. In keeping with this, US-ACAN has named some of the individual islands and nearby features for surgeons who have worked in Antarctica.