Kammala wannan jumla: A watan Mayu, 1934, sun taimaka wajen shirya da kuma shiga cikin
yajin aikin ma'aikatan tashar jiragen ruwa a San Francisco. Shugabannin da 'yan sanda, sun yanke shawarar dakatar da yajin aikin, sun bude wuta a kan masu yajin aikin, suka kashe biyu kuma suka jikkata wasu da yawa. A shekara ta 1938, Karl ya tafi Jihar Washington don taimakawa wajen tsara ma'aikatan gwangwani na Alaska.