Notes on verification

Corroborated by an academic encyclopedia, a university page, and multiple news outlets, though most trace back to historian John R. Wunder's original research. No contradicting accounts found. [tier=silver indep_score=0.9 clusters=5 claim_tier=notable | framework convergence=partial on Historical account by John R. Wunder, cited across multiple secondary sources (upstreams: John R. Wunder (University of Nebraska-Lincoln) historical research/scholarship on the Yee Shun case) — publishers independent, evidence may not be | kind=empirical eligibility=high (extractor: empirical/medium)]