Barker Bros, the old-established Downham builders, builders merchants and DIY store, has come a long way since brothers Ben and John set up the business with just one handbarrow and a small assortment of tools. From modest beginnings, the company has developed over the past 75 years into a multi-million-pound enterprise owning property in the market town, including a popular self-service launderette. Barker Bros were particularly known for building the extensive Trafalgar Estate of detached bungalows – the estate often being referred to as the Barker Bros bungalows. This week, bunting and ball…