1840 - Marriage of John Dow Esq., of Ardenhall, Upper Hunter to Janet, second daughter of James Baird, Esq., of Greenock on 24th November. Minister Rev. John Morse at Belltrees. December 1840
1840 - Richard Burnett (Byrne) married Isabella Cowen at Arden Hall in June 1840
1840 - John Bell married Harriet Terry in June 1840 at Arden Hall
1841 - Mrs. Dow of Belltrees gave birth to a daughter in September 1841
1842 - John Dow mortgaged Arden Hall in 1842 and the estate was acquired by Dow's brother-in-law Hamilton Collins Sempill. however Sempill was also in financial difficulty in the 1840's and he returned to Scotland with his family on the 'Eweretta' in 1842.
1842 - Charles and Isabella (McLeod) Pratt employed by John Dow at Arden Hall 1842
1842 - Helen Leitch Dow, daughter of John and Janet born in 1842
1843 - John Dow obtained license to depasture stock beyond the limits of location for the year commencing 1st July 1843 - Liverpool Plains and New England
1844 - Described as a grazier of Arden Hall in 1844.
1844 - George Campbell Dow, son of John and Janet Dow baptised in January 1844
1845 - Arden Hall situated twelve miles from Scone. 15 miles from Aberdeen. 960 acres with family mansion of brick. 7 rooms, pantry, store room, huts, stockyard, blacksmiths etc on the Hunter River. Advertised for sale January 1845.
1845 - James Baird Dow, son of John and Janet Dow born October 1845
1850 - David Colquhoun Dow, son of John and Janet Dow baptised January 1850
John Dow was described as one of the first free settlers in the New England district