Aberdeen Harbour Board: Report by Superintendent of Harbour Rails [Document 1] A report by David McKenzie regarding an accident that occurred, citing testimonials regarding the matter. Notes that a horse was pulling a cart across the rails when its shoe got caught. It is concluded that this is an unfortunate accident, one that is unlikely to recur due to specific circumstances. The was no permanent damage to the track as noted in [Document 2], and the horse appears to have no lasting damage. Though it does request that improvements be made to the guards of some of the switches. 7 Nov 1856