The Charles Thomas Acutt and Robert John Acutt referred to in your post were sons of Charles Acutt who was born at Fintray, Aberdeenshire, Scotland in 1870. Charles Acutt left home for Australia in 1888 and settled in Queensland.In 1892 he married Alice Elizabeth Dellar and they had 9 children. Charles Acutt died in 1949 and his wife in 1953.
Charles Acutt had an elder brother Thomas born in 1863 and a younger brother John born in 1873.There were also 4 sisters:Eliza born in 1861, Isabella born in 1865, Ann born in 1867 and Margaret born in 1876. All the children were born at Fintray Aberdeenshire.
Charles Acutt's father was also a Charles Acutt and was also born at Fintray on 12th January 1832.