LJTP 500.001 – Improvements of the Harbor of Dubuque – 1855
LJTP 500.002 – Public Surveys of Iowa – 1855
LJTP 500.003 - Sketches of the Public Survey in Iowa Territory - 1845
LJTP 500.004 - Weekly Dispatch Atlas - United States of North America - c.1863
LJTP 500.005 - North America - Sheet V The North West and Michigan Territories - 1833
LJTP 500.006 - Sidney Hall - United States - 1828
LJTP 500.007 - Comprehensive Atlas Geographical, Historical and Commercial - United States Exhibiting the Railroads and Canals - 1835
LJTP 500.008 - Dower - United States - c1840
LJTP 500.009 - Public Survey of Wisconsin & Territory of Minnesota - 1855
LJTP 500.010 - Andreas Atlas Co. - Map of Dubuque County, Iowa - 1875
LJTP 500.011 - Andreas Atlas Co. - Map of City of Dubuque, Iowa - 1875
LJTP 500.012 - Carte Du Canada ou Dela Nouvelle France - 1708
LJTP 500.013 - Harbor of Dubuque - 1854
LJTP 500.14 - City of Dubuque Platte - circa 1845
LJTP 500.015 - Dunleith - Vinegar Hill - Council Hill - Jo Daviess Counuty, Illinois - circa 1875
LJTP 500.016 - Plat of Peru Township - Dubuque County, Iowa - 1875
LJTP 500.017 - Plat of Sherrill, Dubuque County, Iowa - 1875
LJTP 500.018 - Plat of Mosalem Township and Rockdale - Dubuque County, Iowa - 1875
LJTP 500.019 - Plat of Washington Township and Key West, Dubuque County, Iowa - 1875