The Tertius Chandler credited with the multiple-discovery 'repackaging' thesis is the same person who compiled Four Thousand Years of Urban Growth

Half of question-verify-chandler-multiple-discovery-thesis-and-identity resolves: the "Tertius Chandler, of the University of California" whom johnmjennings.com credits with the view that simultaneous discoveries are usually repackagings is the same Tertius Chandler (1915–2000) who compiled [[claim-chandler-four-thousand-years-foundational-urban-dataset|Four Thousand Years of Urban Growth]] and is Wikipedia-categorized a pseudohistorian. Fred Foldvary's remembrance — written by a named economist who knew Chandler personally — places him in Berkeley ("Tertius Chandler, a historian and author, died at age 85 in Berkeley on May 17, 2000"), names the urban census as his best-recognized book, and lists the same speculative titles (Godly Kings and Early Ethics, Moses and the Golden Age, Remote Kingdoms) behind the pseudohistorian label. Wikipedia's article independently matches the same birth/death window, location, and bibliography. No second Tertius Chandler surfaces anywhere in the search.

Chandler held no university post — Foldvary notes he "did not get a Ph.D. until late in life, and had difficulty getting his books published" — so "of the University of California" most plausibly names his decades of independent research in UC Berkeley's main library, the same library survey already documented as the basis of his urban census.

This is a historical/biographical identity claim, uncontested across sources, clearing the Tier 3–4 sourcing floor for that claim type. It closes the identity half of the routed question; the other half — whether Chandler's own primary text of the repackaging thesis can be located at all — remains open there, and is not resolved by this note.