Frank Hann

Frank Hugh Hann (1845–1921) was an explorer in Western Australia, who in 1897 named Lake Disappointment. Hann was in the area exploring the east Pilbara, around Rudall River. He noticed creeks in the area flowed inland, and followed them expecting to find a large fresh water lake. To his disappointment the lake turned out to be salt.

Frank Hann National Park is named in his honour.