Question: What nationality is Elizabeth Rockefeller Strong's husband?
Sentence (from "Elizabeth Rockefeller Strong"): Elizabeth "Bessie" Rockefeller (August 23, 1866 – November 14, 1906) was the eldest child of Standard Oil co-founder John Davison Rockefeller (1839–1937) and school teacher Laura Celestia "Cettie" Spelman (1839–1915).
Relevant evidence: No