Lt Col Percy George Clark was born in 1878 and was a Gunner.
He was initiated into Dene Lodge No 2228 in Cookham Dene, Berkshire. He also joined Carnarvon Lodge No 708 at Hampton Court and the Lodge of Honor and Generosity No 165 in London. He was made a Past Provincial Grand Deacon by the Province of Berkshire.
He was the brother of fellow Founder and fellow Gunner Lt Colonel Herbert Nicholls Clark.