Plaque about John Mortimer on the Rockingham Waterfront Pioneer Rotary Walk in Rockingham, Western Australia. It reads, "Mortimer: John Born about 1857 in Western Australia, he married Emma Postans in 1880. They settled on lot 305, comprising 40 acres of land on Long Swamp at Hope Valley. John donated some of his land to build the original Hope Valley School. They had nineteen children."