Robert McCreath was born in 1890.  He married Janet Andrew Simson on 7 June 1918 at Maybole. They had two children:

Robert McCreath born 19 June 1926.

John Simson McCreath born 1 May 1930, Maybole

Robert McCreath married Margaret Callan Williamson Forsyth on 12 December 1970 at Dunure. They had a daughter, Marion Janet McCreath, on 3 July 1976.

John Simson McCreath married Margaret Lockhart McWhirter on February 1956 at Alloway Church. They had two children: Jacqueline Margaret McCreath (born 1957) and Robert John Simson McCreath (born 1962). Jacqueline married William O’Neill. Robert married Janet Edgar Gibson. They have two children: Laura Dale McCreath (born 1986) and John Robert Simson McCreath (born 1988).