Common Core with World Book Advanced

An important part of my US History class is working with primary sources. Once I convince students (and the occasional parent) that there is a difference in primary and secondary sources the problem becomes where a student can find reliable primary sources. World Book Advanced weeds those primary sources out so a student can easily find them- I love that they are separated from the rest of the research. How can I weave this in with my Common Core Standards? I’m trying to figure it out one standard at a time. Today I’m looking at: 11-12.RH.1 Cite specific textual evidence to support analysis of primary and secondary sources, connecting insights gained from specific details to an understanding of the text as a whole. My lessons in US History are focused on the Great Depression and the Dust Bowl. Today, we read and discussed a letter written by a woman in the midst of the Dust Bowl. Using World Book Advanced, I can have students research the Dust Bowl. The goal is to find another primary source confirming her experience. What in your primary source was like this lady’s experience? What was different?