New York attorney · Reg. #6290977

Donald Keith Thomas, Iii

Registered (registry: Currently registered)

Current employer

Manning Gross & Massenburg LLP · O Fallon, IL · since at least September 2026

Admission

Admitted 2025, Third Department · St. Louis University School of Law

Employment history

• Manning Gross & Massenburg LLP · O Fallon, IL · current

Compiled from NYS Office of Court Administration registration records, published NY Appellate Division decisions, and SEC orders against attorneys; current as of October 2026. Not an official record; verify with the NY Courts Attorney Search.