Macaulay was a brother of
John Simcoe Macaulay and the uncle of
John Beverley Robinson. His brothers-in-law included
Christopher Alexander Hagerman,
John William Gamble and
John Solomon Cartwright. In 1821, Macaulay married Rachel Crookshank Gamble, daughter of John Gamble (1755–1811), a Loyalist Surgeon with the
Queen's Rangers. They had three surviving daughters. Catherine McGill Macaulay, married Benjamin Homer Dixon (1819–1899) of Homewood, Toronto, Knight of the
Order of the Netherlands Lion. Lady Macaulay died in
England on 17 July 1883, at the home of her son-in-law, Edward Henry Bennett (1822–1897) J.P., of
Sparkford Hall,
Somerset, whose son with Macaulay's youngest daughter, Louisa Birchall Macauley, was the Anglican scholar
Frank Bennett. Macaulay died 26 November 1859, at the home he had built on his father's land in
Toronto, Wickham Lodge, which he named after the English village of
Wickham, Hampshire where two of his maternal aunts lived with their respective husbands: Admiral
Thomas Revell Shivers (1751–1827) and Lieutenant-Commander Thomas Dorsett-Birchall (d. 1836). He left his home and $40,000 to his wife (). == References ==