Conversation so far:
when was George Mallory in europe?
In 1910.
what did George Mallory do in europe?
Mallory was in a party led by Irving, Mallory and a friend attempted to climb Mont Vélan in the Alps.
were Irving and Mallory successful in their attempt to climb the Alps?
The team turned back shortly before the summit due to Mallory's altitude sickness.
did Irving and Mallory try to climb Alps again?
In 1911, Mallory climbed Mont Blanc, and made the third ascent of the Frontier ridge of Mont Maudit in a party again led by Irving.
did George Mallory climb with anyone?
Harry Tyndale
did George Mallory climb anything else besides the alps?
Yes, Mount Everest

Question: did he go with anyone?
Self-contained rewrite: did George Mallory go with anyone on Mount Everest?