Percival Allen (Percy) was born at Payneham on 24 December, 1885. He attended the Wellington Street Public school for his education, and after leaving school worked in the market gardening business. He was a greengrocer at Balaklava in 1909, according to the S.A. Directory; later, in 1913, he was a farmer in the same place. His first wife, whom he married in 1917, was the former Ada Price. There were no children. His second wife was Doris May Percy, and there was one daughter Barbara, Mrs Wallace.

About 1928, it is thought, Percy left Balaklava. It was the Depression, and his kindly nature, by supplying fruit and vegetables to those people who could not afford to pay him, caused him to have to leave the town. He worked as a gardener at Walkerville for about 8 years, then in a similar position for the Misses Grace and Gertrude and Mr Norman Darling at North Adelaide. He retired in 1954, at which time he and his family were living at Medindie Gardens. Percy and his wife moved to Brighton and he died there on 9 June, 1961, aged in his 76th year. His second wife was ill for the last years of her life, and died in a Lutheran Rest Home on 23 October, 1968. They are buried at Brighton.