It is named after Horace Walker, president of the British Alpine Club, who made the first ascent.

The highest point of the mountain was reached two years later by A. W. Moore and Horace Walker with guide Jakob Anderegg on 28 June 1865.

Grove's book is illustrated with six plates by Edward Whymper, from photographs by Horace Walker, and a folding map.

The first ascent was made by A. W. Moore and Horace Walker with the guide Jakob Anderegg on 9 July 1865.

It was certainly ascended on 28 June 1868 by A. W. Moore, Horace Walker and Jakob Anderegg.

Horace Walker (1838 - 1908) was an English mountaineer who made many notable first ascents, including Mount Elbrus and the Grandes Jorasses.

The first ascent of the highest peak of the mountain (Pointe Walker) was by Horace Walker with guides Melchior Anderegg, Johann Jaun and Julien Grange on 30 June 1868.

Whymper climbed the Barre des Écrins in 1864 with Horace Walker, A. W. Moore and guides Christian Almer senior and junior.

The first ascent was by A. W. Moore, Horace Walker and Jakob Anderegg on 6 July 1865, via the east face.

It was first climbed by Frank Walker, Horace Walker and Lucy Walker, with guides Jakob Anderegg and Melchior Anderegg on 21 July 1864.