Introducing an exchange student from Germany to Lincoln

[Rogerm]

Unfortunately, I can't find the specific reference to this right now in books from my personal library. However, I did find the following quote on Google: "Abraham Lincoln shrewdly bought the German newspaper 'Illinois Staatsanzeiger', press and all, before he set out for the national convention in Chicago and the Republicans employed German orators to stress German issues throughout the campaign." However, I don't know who their source for this quote is.