Robert 'Bob' Wade Stone, 61. Born April 9, 1943 in Missouri. Passed away April 6, 2005 in Laguna Hills, California. A recording and mastering engineer, Bob was best known for his engineering work with the late Frank Zappa. He is survived by his mother, Harriet Stone; sisters, Barbara C. Jones; Diana J. Rishel and Norma L. Miller.