Complex sentence: George Wallis (1811--1891), artist, museum curator and art educator, was the first Keeper of Fine Art Collection at South Kensington Museum (later the Victoria & Albert Museum) in London.
Split into simpler sentences: George Wallis (1811--1891) was an artist, museum curator and art educator. He was the first Keeper of Fine Art Collection at South Kensington Museum (later the Victoria & Albert Museum) in London.