As Kaufmann's client for almost the whole summer on more than 25 exploits in the Bernese and Pennine Alps, John W. S. Brady from Baltimore filled several pages (October 15, 1911) in Kaufmann's Führerbuch. In July 1911, Christian's brother Hans joined Brady in a climb of the Klein Scheckhorn over the Upper Grindelwald Glacier of the Lauteraarsattel-Route. Brady also recorded that Christian, my friend and guide, was with me last March [1912] in Norway. Although the weather was not favorable that year, Christian guided Brady to two Norwegian summits: Ruten (4974 ft) (Oppland) near Fefor, Nautgardstind (7,600 ft.) near Bessheim. During that summer, they also climbed five peaks in the Maderanertal in the Canton Uri: Gross Windgällen (10, 459 ft.), Oberalpstock (10,919 ft.), Claridenstock (10,722 ft.), Scheerhorn (10, 810 ft.), Gross Ruchen (10,265 ft); and, in the South Tyrol, the two highest peaks of the Ortler Alps, Königspitz (12,655 ft.) and Ortler (12, 811 ft.).