Complex sentence: Entire secondary schools were relocated: for example Hymers College had pupils in Pocklington and Market Weighton, whilst Newland High School moved to Bridlington and later Malton; many students remained in the city; most returned from the end of 1942 onwards.
Split into simpler sentences: Entire secondary schools were relocated: for example Hymers College had pupils in Pocklington and Market Weighton whilst Newland High School moved to Bridlington and later Malton. However many pupils remained in the city and most evacueees returned from the end of 1942 onwards.