地图 洪堡 (堪薩斯州)
1870|Colton, G. W. & C. B.1:570 240
1860|Johnson, A.J.1:823 680
1873|Gray, O.W.1:1 140 000
1874|Gray, Ormando Willis1:1 159 000
1845|Morse, Sidney E. (Sidney Edwards), 1794-18711:1 650 000
1845|Breese, S.1:1 800 000
1848|Greenleaf, Jeremiah1:1 950 000
