[1] He studied law, passed his bar exam in 1848, and established a private practice before the outbreak of the war.

Returning to his regiment on July 2, after Rowley resumed brigade command, Biddle participated in the repulse of Pickett's Charge.

[1] His head wound, received at Gettysburg, eventually led to Biddle's departure from active service.

He also returned to his position as solicitor for the Pennsylvania Railroad Company, which had been help open for the duration of the war.

Chapman Biddle died on December 9, 1880, and was buried in the churchyard of Church of St. James the Less in Philadelphia.