Mabel married Charles Thomas PARK in Perth, 1902. Charles was the first of three brothers who married three Best sisters.
Charles had throat cancer and died in 1913. Their son, Donald had also died in 1909. In 1914, Mabel took daughter Dolly (Dorothy Rose May) to Sydney and stayed with her Aunt Susanna. There Mabel found she had diabetes and died, aged 34. She is buried in the Field of Mars Cemetery, Ryde. Grandma (Rebecca) went over and brought Doll back and Doll then lived with her until she married Leslie Henderson in 1926. The Hendersons had four children.