Robert McCreath married Margaret Jane Swinton at Walmer Crescent, Govan, Glasgow. on 2 March 1876. They emigrated from Glasgow  to Brisbane aboard the Roxburghshire some three months later.

Their daughter  – Charlotte McCreath – who was born on 5 January 1871, at Calton, Glasgow, before Robert and Maggie’s marriage, accompanied them.

The couple had six more children in Australia:

Robert McCreath                                  born 5 January 1877

Maggie Nixon McCreath                       born 4 January 1879

Jemima Swinton McCreath                   born 16 January 1881

David McCreath                                     no details

Agnes Simpson Manners McCreath      born 8 November 1883

William John McCreath                          born 5 September 1885.

William John McCreath, born 5 September 1885

Margaret Jane McCreath (ms Swinton) died on 28 July 1888 at Brisbane, only about 36 years old. Robert remarried on 30 December 1890 to Jeannie Brown Carswell.

Robert McCreath and his second wife, Jeannie Brown Carswell in later life.