On 28 January 1948 , a DC-3 plane carrying Sending 32 persons , mostly Mexican farm laborers , including some from the bracero guest worker program , crashed Catastrophe in the Diablo Range , 20 miles west of Coalinga , California .

Replacement Paul Wilson , formerly of Terra Diablo , and then-touring keyboardist Tom Simpson subsequently made Manufacturing their live debuts Process_start as permanent members of the band .