1714 Phillip, 2nd Earl Stanhope, born.
1753 Charles, 3rd Earl Stanhope, born.
1781 Phillip Henry, 4th Earl Stanhope, born.
1786 Phillip, 2nd Earl Stanhope, died.
1805 Phillip Henry, 5th Earl Stanhope, born.
1816 Charles, 5th Earl Stanhope, died.
1821 "Viscount Mahon, (son of Earl Stanhope)
1838 Arthur Phillip 6th Earl Stanhope born.
1843 Earl Stanhope built school.
1844 Phillip Henry, Earl Stanhope owned 2,327 acres in Holsworthy Parish.
1844 Stanhope family owned Simpson (179 acres) and West Simpson (272 acres).
1846 Phillip Henry, Earl Stanhope, gave part of Fair Park for the building of a school for the poor.
1855 Phillip Henry, 4th Earl Stanhope, died.
1868 Earl Stanhope owned Chilsworthy.
1875 Phillip Henry, 5th Earl Stanhope, died.
1880 James Richard, 7th Earl Stanhope, born.
1895 Earl Stanhope gave extra land for an extension to the school.
1901 Arthur Phillip, Earl Stanhope, gave to the people of Holsworthy Stanhope Park, in area 8½ acres. The entrance gates were erected by the people of Holsworthy in honour of Viscount Mahon (the eldest son of Earl Stanhope) coming of age.
1905 Arthur Phillip, 6th Earl Stanhope, died.
1910 June 30th. Sale of part of The Stanhope Estate. 1,450 acres.
1910 Simpson Estate sold by Earl Stanhope.
1911 Sale of remainder of Stanhope Estate.
1931 Earl Stanhope sent “Holsworthy Standard” weights and measures to Holsworthy Museum.