[Theme: TwentyTwelve] Display author and date info on post exceprts

Hello,

This might be a really basic question, but I can’t seem to figure out how to add date and author information to my blog excerpts using the Twenty Twelve theme. I had modified the child content.php code to get the excerpts to display, but I am not sure what code to add to have the date of the post and author information display again.

My content.php code

Thanks!
Jessica