Vaudeville comedienne Billie Bird Sellen was discovered at an orphanage at the age of eight years and hired to tour theater circuits with a vaudeville troupe. During the Vietnam War she accompanied 12 USO tours entertaining the troops in the war zone in the 1960s and 1970s. She had worked as recently as 1995 when she appeared in Jury Duty (1995), starring Pauly Shore. Other notable performances were in Dennis the Menace (1993) and Home Alone (1990). One of her best-known film appearances was in the 1968 movie The Odd Couple (1968). Her last a…