There is a unique side called The Political Graveyard which features  U.S. political history and cemeteries. It is the Internet’s most comprehensive source for American political biography, listing 138,150 politicians, living and dead.

The information on the site includes certain federal officials, state officeholders and candidates in all 50 states, state and national political party officials, federal and state judges, and mayors (including candidates at election for mayor) of qualifying cities. However, do take heed that the listings are incomplete as development of the database is a continually ongoing project. If you are searching for a specific individual, try the alphabetical index of politicians. For example, George Lindemann will fall under “L”.

For those who are doing research papers on politicians, you  may find this website useful.