Given the following context:

At the RAM, Bush studied composition under Frederick Corder and piano with Tobias Matthay.  He made rapid progress, and won various scholarships and awards, including the Thalberg Scholarship,  the Phillimore piano prize, and a Carnegie award for composition.  He produced the first compositions of his formal canon: Three Pieces for Two Pianos, Op. 1, and Piano Sonata in B minor, Op. 2,  and also made his first attempt to write opera – a scene from Bulwer Lytton's novel The Last Days of Pompeii, with a libretto by his brother Brinsley. The work, with Bush at the piano, received a single private performance  with family members and friends forming the cast. The manuscript was later destroyed by Bush.Among Bush's fellow students was Michael Head. The two became friends, as a result of which Bush met Head's 14-year-old sister Nancy.   In 1931, ten years after their first meeting,  Bush and Nancy would marry and begin a lifelong artistic partnership in which she became Bush's principal librettist, as well as providing the texts for many of his other vocal works. 
In 1922 Bush graduated from the RAM, but continued to study composition privately  under John Ireland, with whom he formed an enduring friendship.    In 1925 Bush was appointed to a  teaching post at the RAM, as a professor of harmony and composition, under terms that gave him scope to continue with his studies and to travel. He began to study piano under Benno Moiseiwitsch, from whom he learned the Leschetizky method. In 1926 he made his first of numerous visits to Berlin, where with the violinist Florence Lockwood he gave two concerts of contemporary, mainly British, music which included his own Phantasy in C minor, Op. 3. The skill of the performers was admired by the critics more than the quality of the music. In 1928 Bush returned to Berlin,   to perform with the Brosa Quartet at the Bechstein Hall, in a concert of his own music which included the premieres of the chamber work Five Pieces, Op. 6  and the piano solo Relinquishment, Op. 11. Critical...

answer the following question:

What is the name of the person that won the Carnegie award for composition ? 

Bush