People
In all his sickness Archie remembered that to-day was Mademoiselle’s birthday, and sent her his love and congratulations—which promptly reduced good Mademoiselle to tears.
— Theodore Roosevelt

Behind the line May contain spoilers.
Our reading
An editorial interpretation.
Even while ill, Archie remembered it was Mademoiselle's birthday and sent his love and congratulations, which moved her to tears. It's a small, tender scene of thoughtfulness: a kind gesture from a sick person touching someone deeply.
Context reviewed