 In 1903, Meredith married Anne Madeleine VanKoughnet (1863–1945), daughter of Mathew Robert VanKoughnet (1824–1874) of Toronto and Cornwall; Barrister and Bencher of the Law Society of Upper Canada.Her father practised law with his brother, The Hon.Philip Michael Matthew Scott VanKoughnet, later Chancellor of Upper Canada, and together they acquired the largest legal practice brought together in Upper Canada.