Beaver, Clarion County, Pennsylvania.

1877

Caldwell, Joseph A.

1:32k

Oil Belt of Clarion County, Pennsylvania. Venango County and Butler County

1877

Caldwell, Joseph A.

Elk, Clarion County, Pennsylvania.

1877

Caldwell, Joseph A.

1:32k

Borough of Edenburg (Knox). Monroeville (Monroe), Pennsylvania.

1877

Caldwell, Joseph A.

1:2k

Salem, Clarion County, Pennsylvania. Greenville Woolen Mills. Map of Lawsonham. Centerville (Frogtown).

1877

Caldwell, Joseph A.

1:32k

Licking, Clarion County, Pennsylvania. Kossuth P.O. Easton.

1877

Caldwell, Joseph A.

1:32k

Piney, Clarion County, Pennsylvania. Snydersburg.

1877

Caldwell, Joseph A.

1:32k

Outline Map of Clarion County, Pennsylvania. 1877.

1877

Caldwell, Joseph A.

Venango Co., Pa.

1865

F.W. Beers & Co.

1:95k

Map of Venango County Oil Regions.

1865

Hunt, John P.

1:88k