Joan Gustavson of Boca Raton, Florida, passed away on Thursday, November 5, 2020. She was born June 24, 1942 in Pittsburgh, Pennsylvania to Anthony J and Susana (Unguraitis) Mazeika.
Joan is survived by her sister, Maria Dayton of Brandon, Florida and brothers Dr. Denis Mazeika and Anthony B. Mazeika, both of Mission Viejo, California.