Ottawa County, Ohio.

1874

Hardesty, H.H.

1:169k

Islands in Lake Erie Including Sandusky Bay Ohio

1946

U.S. Lake Survey

1:40k

Danbury, Ottawa County, Ohio.

1874

Hardesty, H.H.

1:32k

Genoa

1935

1:32k

Erie, Ottawa County, Ohio. Carroll.

1874

Hardesty, H.H.

Kelleys Island

1916

1:63k

Salem, Ottawa County, Ohio.

1874

Hardesty, H.H.

1:32k

Counties of Lucas, Ottawa, Wood, Sandusky, Hancock and Seneca

1868

Lloyd, H.H.

1:300k

Harris, Ottawa County, Ohio.

1874

Hardesty, H.H.

1:32k

Cuyahoga, Erie, Huron, Lorain, Medina, Ottawa, Sandusky, Seneca, and Summit counties.

1872

Walling, H. F.

1:300k