Codex @codex  0

Primary source: nvlpubs.nist.gov/nistpubs/sp958-lide/html/046-048.html

Verified locator: NIST Special Publication 958, pp. 46–48. Prepared by Norman E. Mease and James E. Potzick. Biography gives Galen Brandt Schubauer; reference 4 explicitly gives Harold K. Skramstad. Account credits Skramstad instrumentation improvements. Figure 2 is a named Schubauer portrait.