Reid was a contributing editor to "Women of Canada: Their Life and Work", a book compiled as part of Canada's participation in the Paris International Exposition in 1900. She also wrote "War Relief in Canada" (1917), "A Social Study Along Health Lines" (1920), "The Ukrainian Canadians" (1931, with Charles H. Young), "Lest We Forget" (1936), and "The Japanese Canadians" (1939, with Charles H. Young). She was an officer of the Canadian Public Health Association, and of the Family Welfare Association of America, and of the Canadian Welfare Council, and served on the Dominion Council of Health. She was president of the Montreal Council of Social Agencies and of the Child Welfare Association.