 Him was naturalised as a British citizen in 1948 and the Lewitt-Him partnership enjoyed great success.Notable commissions included designing the giant umbrella tree for the Wet Weather section of the 1946 "Britain Can Make It" exhibition, the Guinness clock tower for Battersea Park Pleasure Gardens and murals for the Education Pavilion of the 1951 Festival of Britain.The Lewitt-Him partnership was dissolved in 1954, when Le Witt decided to focus on developing his abstract paintings and artworks.