1863 Map of Lapeer County includes names of property and business owners. 20 Mb.

1874 Atlas of Lapeer Co., Michigan, ed. F. W. Beers.

1884 History of Lapeer County, Michigan : with illustrations and biographical sketches of some of its prominent men and pioneers (1884) by H. R. Page Includes a county map (below) but no township maps.

1893 Atlas and Directory of Lapeer County, F. A. Dunham et al, includes names of property owners and has an extensive directory. Also downloadable at archive.org.

1906 Standard atlas of Lapeer County, Michigan

1921 Atlas and Plat Book of Lapeer County, Michigan

1888 Lapeer city maps from Sanborn Insurance Co. (5 maps)

1890 Imlay City maps from Sanborn Insurance Co. (2 maps)

1893 Lapeer city maps from Sanborn Insurance Co. (5 maps)

1895 North Branch city map from Sanborn Insurance Co. (1 map)

1895 Imlay City maps from Sanborn Insurance Co. (2 maps)

1898 Lapeer city maps from Sanborn Insurance Co. (7 maps)

1898 Columbiaville city maps from Sanborn Insurance Co. (2 maps)

1900 North Branch city map from Sanborn Insurance Co. (1 map)

1900 Imlay City maps from Sanborn Insurance Co. (2 maps)

1902 Metamora city maps from Sanborn Insurance Co. (1 map)

1909 Lapeer city maps from Sanborn Insurance Co. (10 maps)

1909 North Branch city map from Sanborn Insurance Co. (1 map)

1909 Imlay City map from Sanborn Insurance Co. (3 maps)

1910 Columbiaville city maps from Sanborn Insurance Co. (2 maps)

1921 Almont city maps from Sanborn Insurance Co. (2 maps)

1922 Lapeer city maps from Sanborn Insurance Co. (13 maps)

1922 North Branch city maps from Sanborn Insurance Co. (2 maps)

1922 Imlay City maps from Sanborn Insurance Co. (5 maps)

Michigan Atlas and Gazetteer, many years

1826 Map of Michigan Territory

1836 Map of the States of Ohio, Indiana & Illinois, and Michigan Territory

1839 Map of Michigan

1839 Gazetteer of the State of Michigan

1848 Map of Railroads in Michigan, with steamboat routes on the Great Lakes

1855 Map of Michigan

1858 Map of Saginaw and Tuscola, with part of Genesee, Lapeer, Huron, Midland counties, Michigan

1873 Michigan Atlas

1876 Railroad Map of Michigan

1885 Map of Michigan showing railroad, townships and sections

1886 Map of Michigan showing the Toledo, Ann Arbor, & North Michigan Railway and connecting lines