Arthur Cyril Robley was the third child and son of Joseph William Robley and Sarah Hayes York. He was born at Rydal on the 26th of August 1880.

Educated at Rydal School, he followed his father and eldest brother, Peter John, and joined the NSW Department of Government Railways.

Arthur married a local girl, Edith Elizabeth Parker in Sunny Corner. She was six years his junior, and the daughter of Joseph Parker and Isabella Orphina Dobbie.

Following their marriage the couple moved into the City where Arthur was employed at the Darling Harbour Marshalling Yards.

While working in the yards, Arthur suffered a bad accident when he caught his foot in the points. Before he could free it, he was struck by a train which severed his leg below the knee. In great pain initially, he eventually was fitted with a prosthetic limb and was able to walk with the aid of a stick. He continued to work at Darling Harbour until he retired, but in a clerical capacity.

By 1908, goods traffic on the line to Darling Harbour and the neighbouring suburban lines had become excessive, with 592 wagons arriving each day and 512 being dispatched. It was decided to construct separate goods lines from Sefton to Darling Harbour via Enfield and Rozelle, with extensions to Botany and the State Abbatiors at Homebush. The initial scheme, approved by the Parliamentary Committee on Public Works, approved the initial line from Dulwich Hill to Darling Harbour. To avoid an opening rail bridge alongside the existing Glebe Island bridge, a circuitous route was built around Rozelle Bay . The proposal, which included two tunnels under Pyrmont and Glebe, was approved on 23 November 1914, and the line opened on 23 January 1922.

His wife, Edith, was a regular attender at the Gladesville Methodist Church as well as a tireless fund raiser. Although they had no children of their own, they raised Doris Taylor one of the 14 children of Edith's sister, Elsie.

Arthur's niece, Eileen Young writes:- Their lives were truly given in the service of others. A more generous couple it would be difficult to find. When Arthur's eldest brother, Horrie became an alcoholic and lost his wife, son, job and self respect, it was Arthur and Edith who took him into their home and gave him the help he so badly needed. Arthur had a dry and ever ready wit and was never a dull companion.

Arthur died at home on the 15th of August 1952 aged 75. Edith continued to live in the Gladesville home until failing health prompted her to move to a nursing home. She died on the 19th.of May 1975 at the age of 79. Arthur and Edith were both cremated at the Northern Suburbs Cremetorium.