The San Antonio Light, 3 August 1915, p. 5: "W. B. Clarkson Tells of England's Lack of Preparedness for War."
Image · dated 3 August 1915 · source: The San Antonio Light, 3 August 1915 (page image via NewspaperArchive).

How it is shown: Complete page as supplied; no crop, no retouch, no search highlight.
Keep in mind: Confirmed as printed; the identification with William Banton Clarkson rests on initials and context (Likely).