Books that focus on more than one subject matter are listed under "Comprehensive Histories".

Aviation - Also look under Wright Brothers

Biographies

Black History

Businesses / Institutions / Manufacturers

Churches - Look under Religion

Canals - Look under Transportation

City Government

Civil War - Look under Military / War 

Comprehensive Histories - Before 1900

Comprehensive Histories - After 1900

Crime - Look under Police Department

Education / Inventions / Schools

Entertainment / Parks / Theaters

Fire Department

Flood / Miami Conservancy

Geology

Lawyers / Legal System Also look under  Police Department / Crime

Medical Field / Physicians

Military / War - Also look under Soldier's Home / VA Center

Native Americans

Parks - Look under Entertainment

Police Department / Crime  Also look under Lawyers / Legal System

Politics

Railroads - Look under Transportation

Religion / Churches

Schools - Look under Education

Soldier's Home / VA Center

Theaters - Look under  Entertainment

Transportation

Wright Brothers