John Travers (ca. 1703 June 1758) was an English composer who held the office of Organist to the Chapel Royal from 1737 to 1758. Before filling several parochial posts in London he had been a choir boy at St. George's Chapel, Windsor and a pupil of Johann Christoph Pepusch.

Based on the paragraph above can we conclude that "Johann Christoph Pepusch was a pupil of John Travers."?
No