Using the search term 'Pettus', ADAH digital images from the Alabama Photographs and Pictures Collection yields fifteen items. The image you are describing for General Pettus is item 8. Item 11 is identified as E. W. Pettus as a young man. Item 1 from the E. W. Pettus collection is unidentifed. However, that man's features are broadly similar to those seen in items 8 and 11, especially the latter.