Friends and family remember him as an astute legal mind, a superior manager of his courtroom and the Southern Judicial District, and a champion of the disadvantaged and of women's rights. The titles for his memorial service were given to symbolize the important part women played in his professional and personal life, said his wife, Patsy Singleton. Singleton presided over important civil rights cases, high-profile criminal cases that resulted in death threats and one of the most complicated cases to come before a federal court. During the trial of mobster Carlos Marcello in 1970, accused of trying to punch an FBI agent, threats were made against him and his first wife. Singleton became regional coordinator for a seven-state area for the Lyndon Johnson presidential campaign in 1964. Singleton also was proud of his civil rights cases, said Dena Palermo, a close friend and one of his law clerks, 1982-84. In 1970, he ruled that Houston unconstitutionally denied a parade permit to a group protesting the Vietnam war. A memorial services is scheduled for 2 p.m. March 31 at St. Martin's Episcopal Church at 717 Sage, followed by a reception at Lakeside Country Club at 100 Wilcrest Drive.