Does anybody know where these players were active in the season 1990 ? need clubs in June 1990

Oscar Wirth (gk)
Patricio Reyes (right-back) in 1989 Deportes La Serena
Daniel Ahumada (right-back) in 1989 Huachipato
Jorge Carrasco (df) in 1989 Huachipato
Leonel Contreras (centr. def) in 1989 Deportes La Serena
René Valenzuela (centr. def) Deportes Naval ?
Juan Carlos Hernandez (left-back) in 1989 Palestino
Alex Martinez (left-back) Universidad Catolica ?
Roberto Reynero (left-back) in 1989 Universidad de Chile
Fernando Pérez (mf) Union Espanola ?
Luis Rodriguez (mf) in 1989 Universidad de Chile
Ivan Valdés (mf) in 1989 Deportes Valdivia
Mario Cruz (mf) Everton Vina del Mar ?
Patricio Yanez (right-winger) Betis Sevilla ? or Universidad de Chile
Oscar Herrera (right-winger) Deportes Naval ?
Alfredo Nunez (fw) Palestino ?
Ramon Pérez (fw) Palestino ?
Juan Carlos Letelier (fw) Deportes La Serena ?

Thanks in advance.