Further expansions through the 1920s and 1930s was made possible through private donors, such as the two daughters of Edward Turner Sims for the construction of the university library, and from the people of Southampton, enabling new buildings on both sides of University Road. During World War II the university suffered damage in the Southampton Blitz with bombs landing on the campus and its halls of residence.The college decided against evacuation, instead expanding its Engineering Department, School of Navigation and developing a new School of Radio Telegraphy. Halls of residence were also used to house Polish, French and American troops. Ngemva kwempi, departments such as Electronics grew under the influence of Erich Zepler and the Institute of Sound and Vibration was established. Ukufika kukaSitimela kwanikeza uMbuso wamaNgisi inselelo enkulu ngoba kwase kufanele uvikele uMlandela. Ngenkathi kuqubuka impi kwaMthethwa phakathi kwabalandeli bakaSitimela nabakaMlandela, impi kaMlandela yehluleka ukunqoba ekaSitimela ngoba uMlandela wabe esegugile. Impi kaSitimela yaqhubeka yabulala uNomqotho, unina kaSokwetshatha indlalifa kaMlandela.