[1] On 17 April 1835, he was commissioned, with the rank of Ensign, in the service of the 93rd Foot, fighting in the Upper Canada Rebellion in 1838.

[2] From her father's fourth marriage in 1833 to Lady Frances Jocelyn (the second daughter of Robert Jocelyn, 3rd Earl of Roden),[10] she had two younger half-siblings: Roden Noel (a Groom of the Privy Chamber) and Lady Victoria Noel (the wife of Sir Fowell Buxton, 3rd Baronet, the Governor of South Australia).

Sir Andrew died on 25 March 1892 at age 74 at Lochnaw Castle near Stranraer, Dumfries and Galloway, Scotland.

[8] Through his son Henry, he was a grandfather of Dorothea Alma Agnew (who married Harold Swann, a son of Sir Charles Swann, 1st Baronet) and Hazel Louisa Agnew (who married Francis Stapleton-Cotton, 4th Viscount Combermere of Bhurtpore, but they divorced in 1926).

[8] Through his daughter Constance, he was a grandfather of The Very Reverend Nevile Davidson, who became the Moderator of the General Assembly of the Church of Scotland.