Re a "stubby Hawken", there is a photo of another in the book "Firearms of the American West 1803-1865", page 54. It is a .54 S. Hawken with a long forestock and a 25" barrel, looks to be cut off just ahead of what would have been the rear rod pipe. (Courtesy of the National Park Service, James H. Cook Collection). It has a single trigger! Michael L. of this forum kindly wrote me to tell me that he owns the number two Hawken in the John Baird photo I referenced and that it has a barrel 34 13/16" long ahead of the snail, 35 1/2" with the breech plug. I had based my calculated barrel length on a 5" lock and got 33". He also owns a fine bench copy of the #5 rifle by Bob Browner, and that one has a 36" barrel (ahead of the snail). Pictured in the July 2012 "American Tradition" magazine of the CLA with the original. So with a magnifying glass I carefully remeasured those seven locks and found they were all different lengths. But with one known dimension (the barrel length of #2) I calculated a correction factor for the photo measurements and recalculated the barrel lengths. I now get 32.9" for the first one on the left, 34.8 for number two (known), 35 for #3, 34.28 for #4, 36 for #5 (known), 35.86 for #6, and 32.15 for #7.