"El Intruso" 1921-1969 was newspaper microfilm project that took place at the University of Arizona and the University of Sonora. Collaborators included Dr. Kieran McCarty, Dr. Fernando Tapia, et. al.
First national journalism convention. Santiago Rivas was publisher and editor of El Intruso, 1921-1969. The group portrait includes journalists and their guests. Santiago Rivas can be seen in the back row, second left.