In 1967, the Town of Mimico was merged with two other lake shore communities (the Town of New Toronto and the Village of Long Branch) and the Township of Etobicoke to form the Borough of Etobicoke. The Last Mayor of Mimico, who was first elected in 1960, was Hugh Griggs who edited Mimico's official history 'The Mimico Story'. While Canada celebrated its Centenary, the new Mimico Centennial Library was opened. Mimico had torn down the Carnegie Library (the only of Toronto's Carnegie Libraries to be demolished) and two adjacent houses to build the larger Mimico Centennial Library, which was set back from the corner location of the previous library building. The plaque honouring the towns First World War veterans was removed to a new park named 'Vimy Memorial' at Lake Shore Blvd. West and Queens Ave.