planning. While it is a relatively small market it is stable. Motor mowers were added in 1922. White and Poppe in Coventry had always supplied engines for Dennis Brothers motor vehicles. A takeover had been under consideration before the war but it was not until April 1919 that it was made public Dennis Brothers and White and Poppe had agreed to an exchange of shares in each other's business. The swap gave Dennis Brothers the controlling interest in White and Poppe. Alfred White and Peter Poppe joined the Dennis Brothers board but it was not until March 1933 in the midst of the 1930s depression that engine production was transferred from Coventry to Guildford. One chassis was used for both lorries and buses. In the 1920s Dennis began to design and build separate chassis for their public service vehicles (buses) with a lower ride height. Pneumatic tyres were introduced. Forward control buses were added to their catalogue in the same decade. Export markets were developed between the wars, particularly vehicles for Hong Kong. The 1930s The decade began with the Great Depression. Diesel engines were in demand for larger commercial vehicles. New Dennis buses were a double-deck Lance and single-deck Lancet. The Dennis Ace, a smaller twenty-seater bus was brought into production in 1933 using the chassis of Dennis's small lorry. The Arrow Minor followed in 1935 and a new Falcon chassis in 1938. John and Raymond Dennis built 223 houses for their workers, 102 of them on a 20 acres estate in Woodbridge Hill for their Coventry motor workers who brought production of White & Poppe engines to Guildford in 1933. The area took on the name Dennisville. Both brothers died in 1939 and they are commemorated in the names of Dennisville's St John's Road and Raymond Crescent. Second World War During the Second World War the Ministry of Supply restricted Dennis to lorries and allocated bus production to Daimler and Guy. Over that period Dennis built some 3,000 6/8 ton capacity Max and 1,500 Pax 3-ton lorries, assembled 700 Churchill tanks, 17,000 engines for landing craft, 7,000 fire pumps, 750,000 bombs and 3,000 infantry carriers. Meanwhile, 'municipal vehicles' were built for military bases. The plant operated around the clock and the number of workers doubled to 4,000. 1948 Nationalisation of road haulage British Road Services, Britain's state-owned road haulage operator, didn't buy any trucks from Dennis. New products