The postmistress, Miss Louisa Tobin, was assisted by her younger sister Lily who, proficient in Morse code, was the telegraph operator. In 1905 the Postmaster General’s Department decided to move the post office to a building nearer the school, two churches and village shops.

The new premises were located in Church Street, at the corner of what is now Anzac Parade, in a building constructed by the Tooth family on land owned by Sarah Nicholas. It had a shop projecting to the footpath with a door at the corner of the two roads. Set back from the Church Street frontage was an attached residence, with a front verandah and rolled iron roof. A telephone connection with Sydney was installed. Louisa and Lily Tobin continued in their roles.

Lily is mentioned in the Scrutineer of 29 June 1907 which describes a very pretty wedding at the Roman Catholic Church, Bundanoon: “Nuptial mass was celebrated, and as the party prepared to leave the church the Wedding March was effectively played on the organ by Miss Lily Tobin, accompanied on the violin by Miss Poulsen, of Sydney.” Thus Lily, as well as being a Morse code expert, had other, musical, accomplishments.

The two sisters continued operating the postal service together until 1916 when Louisa was transferred to Pambula. William Mobbs was appointed on 27 July 1916 to replace her and Lily remained as his postal assistant.

In May 1917 tenders were called for the building of a new Bundanoon Post and Telegraph Office with attached residence. Built of brick with a wide verandah, the premises opened later that year at 27 Railway Avenue on land owned by Henrietta Calverley in the main cluster of shops.

The first postmaster to occupy the new premises was William Mobbs. A manual telephone exchange opened in part of the building in 1918. The original telephone directory indicated the names of just nine subscribers. Everyone else wishing to make a call came to a window in the wall of the post office, asked the operator to dial the number, and waited at the telephone box on the street outside for the call to come through. In the 1920s everyone collected their own letters from the post office. Inside was a counter and Lily Tobin sat at a side table as telegraph operator.

The Scrutineer reported in December 1919 that an application to Wingecarribee Shire Council for permission to erect a weatherboard dwelling at Bundanoon for Miss Tobin had been granted. This would have been for Lily but it became home as well for Louisa after she retired and returned to Bundanoon.

In May 1927, the Scrutineer reported that: “A most successful ball was held in the local hall, Bundanoon, to augment the funds of the recently opened branch of the Country Women's Association.” Amongst those present was Lily Tobin, the CWA branch treasurer.

Louisa Tobin died in August 1931. The Scrutineer noted that she had been an invalid for some years. She was buried in St Patrick’s cemetery at Sutton Forest.

Lily Tobin retired from her post office work in September 1939 and passed away at Berrima District Hospital, Bowral, aged 78, in 1955. The Moss Vale Post noted that she served as assistant postmistress at Bundanoon for over 40 years and was a well-known and much respected figure, being a member of the CWA and a keen golfer. She was buried at St Patrick’s cemetery, where her elder sister laid at rest.

Bundanoon gained its current post office building in March 1958. At the official opening ceremony, then postmaster Mr Morris conducted attending dignitaries through the expansive new brick structure. Those included were the shire president, federal member, district postal manager and director of posts and telegraphs, indicating by their presence that the town was considered to have a bright future.

The town’s earlier two post office buildings were adapted for other uses and now house gourmet cafes.

In 2009 a new public road off Ardross Avenue in Bundanoon was named Tobin Place, in memory of Louisa and Lily.