[2] Ziegler Island is part of the Zichy Land subgroup of the Franz Josef Archipelago.

Co-expedition leader Julius Payer presumed that it was connected to the other islands of Zichy Land.

[3] The exploration done by the 1894-1897 Jackson-Harmsworth expedition reduced the supposed landmass of Zichy Land appearing on the maps considerably.

[5] The 1901-1902 Baldwin-Ziegler Polar Expedition on ships America, Frithjof, and Belgica named Cape Washington and were the first to set foot on the island.

In May 1902 Evelyn Briggs Baldwin [de] ascertained that Ziegler Island was a distinct entity.