I came across this link on Worthpoint yesterday, which has five exposure sheets for projects that Robert McKimson directed or was to direct.
These include the two Pat Paulsen Half a Comedy Show guest appearances (which Pat Paulsen Show (Foghorn), which has the production code of 38017, which involves "Ted" and Jim" (likely Ted Bonnicksen and Jim Davis, given they were involved in McKimson's shorts at this time) as well as "John" and "Tom," the other two animators listed. This also suggests that the Prologue of the Keystone Kops series had reached exposure sheets before that series was cancelled.
Link: https://www.worthpoint.com/worthopedia/vintage-1960s-fritz-freling-original-1857330972
