15. Center of population.

1903

Gannett, Henry, 1846-1914

1:500k

Gen. map XVI.

1895

United States. War Department

1:634k

Indiana.

1927

Rand McNally and Company

1:1m

Railway Distance Map of the State of Indiana

1934

Leahy, J.F.

Indiana.

1870

Johnson, A.J.

1:862k

Indiana.

1948

Hammond, C.S.

1:1m

Indiana.

1909

Cram, George Franklin; Davis, Ellis Arthur

1:2m

New Sectional and Township Map of Indiana.

1874

Higgins, Belden & Co.

Indiana.

1924

Rand McNally and Company

Indiana.

1866

U.S. General Land Office

1:1m