Curtis's dissertation is now available. Contact Curtis if you'd like to read it. Or, if you're an academic researcher, you can access it through ProQuest dissertations, or through Northwestern University's library:
https://search.library.northwestern.edu/primo-explore/fulldisplay?docid=TN_proquest2036592827&context=PC&vid=NULVNEW&search_scope=NWU&tab=default_tab&lang=en_US

Curtis & Meredith wrote a quick article on "5 Ways to Reach New People" this late summer and fall for Church Marketing Sucks Creative Storytelling. It's behind their member wall, but if you'd like to join you can follow this link:
http://www.churchmarketingsucks.com/2018/06/fall-kickoff-church-resources-new-season/