There is a story that Lincoln travelled into Virginia near the end of the war to visit General Grant. After disembarking the boat he was provided with a horse. No horseman was Honest Abe. He provided quite an amusing sight for all who saw this. With stovepipe hat firmly in place, his feet hung almost to the ground with his pants pulled so high that the men could see the bare skin of his legs. It must have been a sight to behold.
Another story I have seen from two references. Lincoln was with cabinet members, sailors and some Generals on a boat during a reconnaissance operation. During a light-hearted moment after dinner, Lincoln claimed he was as strong as a bear and proceeded to demonstrate it by holding an axe straight out at arm's length for several minutes. No one else on board could do it.