Using historical newspapers has many cross-curricular applications that will work so well in my K - 7 library lessons, including primary source accuracy, author bias, and general timelines of important historical events.
Some of my favorite teacher blogs so far (there are SO many to explore) include:
How and Why Communities Remember the World Trade Center;
Attributes: How do Attributes Affect Our Perception of a Person;
Kids in School
All three place historical events and/or people into larger social contexts. All three sources address how historical analysis reaches beyond simple people and events. Historical thinking involves understanding the greater context of the time, along with the common biases of the people who experienced it.