I found an animal described as a "Davy Crockett horse" in an estate inventory in Harrison County, Texas, dated 1870 (an image of the original is available at FamilySearch, in Probate Minutes, vol. K recording date 1868–1872, p. 238, FHL DGS 5782979, image 507). Has any one come across this? If so, what does the descriptor mean?