Board Thread:Questions and Answers/@comment-24520051-20171203215353/@comment-1257201-20180520222542

To the best of my knowledge, Clark Kent's high school graduation was not shown or mentioned in the 1960s or earlier. I'm sure, if asked, the writers would have said that Clark Kent did finish high school, but we only saw Superboy in his school days, and Superman in his adult days. If I'm wrong and someone can point to a Clark Kent graduation referenced earlier than the graduation of the hero/heroine I have in mind, then that would count as a correct answer.

The same applies to Lana Lang.