Assassination Trivia

[RJNorton]

You win, Dave, and thanks for that link, Gene. Yes, it is Reverend Abram Dunn Gillette who gave comfort to Lewis Powell in jail and on the gallows. The photo I was most familiar with is on p. 143 of Betty O's Alias Paine (first edition) and p. 118 of her second edition. I came across the younger photo of Gillette in Vaughan Shelton's Mask for Treason.

Thank you to all who guessed!