Ridleyton is an inner northern suburb of Adelaide, South Australia. It is located in the City of Charles Sturt. The area incorporating the current suburb of Ridleyton was originally granted to Osmond Gilles in March 1839. He later transferred it to John Ridley, inventor of the stripper or reaping machine, in June 1842 for £275. In 1873, Ridley lodged a pla…Ridleyton is an inner northern suburb of Adelaide, South Australia. It is located in the City of Charles Sturt. The area incorporating the current suburb of Ridleyton was originally granted to Osmond Gilles in March 1839. He later transferred it to John Ridley, inventor of the stripper or reaping machine, in June 1842 for £275. In 1873, Ridley lodged a plan to subdivide his land, naming one part Ridleyton.