John O. Aalberg
John O . Aalberg ( April 3 , 1897 – August 30 , 1984 ) was a Hollywood sound technician who worked on films including "Citizen Kane" and "It's a Wonderful Life" . 
<triplet> John O. Aalberg <subj> April 3, 1897 <obj> date of birth <subj> August 30, 1984 <obj> date of death