In this capacity, he gave an address on January 11, 1909 to the Canadian Club of Toronto entitled "The Need of a National System of Technical Education".
Throughout his tenure as Principal and President at NSTC, Sexton was heavily involved in numerous organizations in the City of Halifax, including the Education Committee of the Halifax YMCA's Red Triangle Hut, the Maritime Board of the Canadian National Institute for the Blind, the Canadian Institute of Mining and Metallurgy; the Central Advisory Committee of the Carnegie Corporation; the Biological Board of Canada; the Canadian Education Association; the Rotary Club of Canada; the Commission on Highway Dust Prevention; the Halifax Conservatory of Music, and on the Board of Governors of the Nova Scotia Museum of Science from 1948-52.
[1] Upon Sexton's retirement in 1947, NSTC alumni raised funds to purchase a new Plymouth automobile, which was presented by Premier Angus L. Macdonald.
[2] Sexton's first wife, Edna May Williston Best (June 25, 1880 – December 14, 1923), graduated from the Massachusetts Institute of Technology in 1902 and was a researcher for General Electric Co.
She was an officer in the Imperial Order Daughters of the Empire, the Canadian Red Cross Society, and the Local Council of Women of Halifax.