Question: Who co- founded one of the stores that bought out some of the Focus DIY chain?

Documents:
source: B&amp;Q
text: B&amp;Q B&Q plc is a British multinational DIY and home improvement retailing company, headquartered in Eastleigh, England, United Kingdom and is a wholly owned subsidiary of Kingfisher plc. Founded by Richard Block and David Quayle in 1969 originally as Block & Quayle, the retail chain offers over 40,000 products across 300 stores and online.

source: Great Mills (DIY)
text: Great Mills (DIY) Great Mills was a large DIY chain, consisting of around 98 stores across the United Kingdom. In December 2000, the business was bought by Focus DIY, which in turn entered administration in May 2011, with all stores closing by July 2011. Most Focus DIY stores have been bought, some by B&Q, Wickes and B&M Bargains (B&M Homestore).

source: Húsasmiðjan
text: Húsasmiðjan Húsasmiðjan (also rendered as Húsasmidjan) is chain of hardware stores based in Reykjavík, Iceland. Founded in 1956, it is the largest hardware and DIY chain in Iceland.

source: Do It All (disambiguation)
text: Do It All (disambiguation) Do It All was a British DIY chain

source: David Quayle
text: David Quayle David Andrew Quayle (19 August 1936 – 6 April 2010) was a British businessman best known as co-founder of the UK DIY chain B&Q. He worked in the Marley Tile company in the 1960s and together with his brother-in-law Richard Block started the B&Q retail chain in 1969. Their idea of large warehouse-style DIY stores copied the style already successfully operating in other European countries, but was unknown in the UK and B&Q soon became the largest retail suppliers of DIY products in the UK.

source: Focus DIY
text: Focus DIY Focus DIY was a privately owned chain of DIY stores in the United Kingdom. It served the consumer DIY market sector, and most stores had some form of garden centre.

source: Do It All
text: Do It All Do It All was a British DIY and home improvement retailing company. It went through a number of changes of ownership. In August 1998, the business was sold to Focus DIY, which entered administration in May 2011, with all stores closing by July 2011.

source: Woodie's DIY
text: Woodie's DIY Woodie's DIY is an Irish DIY and home improvement retailing company. Founded in 1987 in Walkinstown, Dublin and opening the first store in the same year, it is a part of the Grafton Group plc. Woodie's DIY is a nationwide company, having over thirty stores in Ireland. It recently merged with Atlantic Homecare, with all Atlantic Homecare stores being rebranded as Woodie's.

source: Bill Archer (businessman)
text: Bill Archer (businessman) In 1987 Archer and Greg Stanley of Fads DIY acquired Choice DIY, a small do it yourself (DIY) company with six stores in the Midlands and the north of England for £900,000. In 1988 the Focus DIY company was bought by Archer and all stores were re-branded Focus DIY. With the help of private equity the chain grew to 72 stores in the United Kingdom.

source: Home Retail Group
text: Home Retail Group formerly publicly traded as Home Retail Group plc (), was a home and general merchandise retailer based in the United Kingdom. It was the parent company of Argos and Habitat, and also owned the DIY chain Homebase until it sold it to the Australian retailer Wesfarmers in February 2016. Home Retail Group was listed on the London Stock Exchange until it was acquired by the British supermarket company Sainsbury's for £1.4 billion on 2 September 2016.

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Answer: Richard Block and David Quayle