"Baptized in Water" pre-1979 instance?

When I look at the instance list for "Baptized in Water", I am offered 20 instances and asked if I want to include the 1 pre-1979 instance. When I say yes, include it, I am offered a list that supposedly contains a pre-1979 instance but none of the instances listed shows a date earlier than the text's 1982 copyright date (see footer of this page scan). What gives?