Caldwell, Elvin R Mayor McNichols ousts Denver Center for the Performing Arts Board dissenter, Cathy Donohue, appoints Caldwell claiming he wanted "minority" representation. Details. RMN My 5, 1977 p.1,66 New trustees criticize city Councilman Elvin R. Caldwell's appointment to Denver Center of the Performing Arts Board of Directors. Challenges Salvadore Carpio for presidency of Denver City Council. Post Je 13, 1977 p.3 0