Here are a few works that I consult often, and it would be great to have an Accordance-searchable version of them. I would consider them reference works. The titles by Robinson are in the public domain, and the Simons' book might also be.
Robinson, Edward, and E. Smith.
1841 Biblical Researches in Palestine, Mount Sinai and Arabia Petræa. A Journal of Travels in the Year 1838. 3 vols. Boston: Crocker & Brewster.
1856 Later Biblical Researches in Palestine and in the Adjacent Regions, A Journal of Travels in the Year 1852. Boston: Crocker & Brewster.
Simons, J. [Jan Jozef].
1959 The Geographical and Topographical Texts of the Old Testament: A Concise Commentary in XXXII Chapters. Leiden: E. J. Brill.