Pioneer map, Plat "D" and Empire Mill Tract : Great Salt Lake City, Salt Lake County, Utah / compiled and copyrighted by Nicholas G. Morgan, Sr. ; drawn by J.B. Ireland.Morgan, Nicholas G. (Nicholas Groesbeck), 1884-1971[1950?]"... compiled from three original Pioneer Maps still on file in the Salt Lake County Recorder's Office ... only one of the Pioneer Maps referred to ... was dated; but evidently all the original maps and surveys of that period were made by Jesse W. Fox, city and territorial surveyor in the early 1850s"--from text.cartographic