Hugo Estrada has written:
'Por el ojo de la cerradura'
'Ya somos una gran ciudad'
'Veneno tropical'
Roberto Estrada has written: 'Trenco'
Justo Estrada has written: 'Felipe II'
Lucas Ramos Estrada has written: 'Los salmos'
Angel de Estrada has written: 'El huerto armonioso'
Rafael Estrada has written: 'Viajes sentimentales' 'Canciones y ensayos'
Hugo Carrillo has written: 'Mortaja'
Hugo Zapata has written: 'Hugo Zapata, 1977-1987'
Horacio Estrada C. has written: 'Romance de la antigua Guatemala'
Ezequiel Marti nez Estrada has written: 'El hermano Quiroga'
Hugo Bethmann has written: 'Die Hebezeuge'
Hugo Murno has written: 'A y O'
Hugo Potyka has written: 'Pflegefall Althaus'