They had ten children, all born and raised in Rio Grande do Sul, including Clóvis Pestana, former Brazilian Minister of Transport and Mayor of Porto Alegre, and Cyro Pestana, Justice of the State Supreme Court. Augusto Pestana is grandfather to the Brazilian engineer and corporate leader João Augusto Chagas Pestana, first Chairman of the Board of the power utility Rio Grande Energia, and great-grandfather to the Brazilian socialist leader Vera Sílvia Magalhães, one of the main figures of the armed resistance against the military dictatorship of 1964-1985, and to Carlos Pestana Neto, former Minister-Chief of Staff of the State Government of Rio Grande do Sul.