 The actor who played the sentry in the hospital was a bit player  whose performance touched audiences all over the country in his  scene where he wistfully sighs at the sight of Lillian Gish (qv)  entering the hospital. In fact, audiences loved the actors  performance so much so that D.W. Griffith (qv) tried to track him  down, supposedly to no avail. Some filmographies credit William  Freeman in this role. Gish corroborates this credit in her  autobiography, writing that she met Freeman years later when she was  riding in a parade.