Here is information about how the Archives' information is organized, and some specific topics about which they have information, including church records and police records.

Here is some history:

• During the 1930s, the Works Progress Administration (WPA) funded a project to index the Baltimore City Archives
• The project produced two finding aids: a card file and a typescript inventory of records 
• Both of these have been microfilmed, scanned, and put online by the Maryland State Archives (MSA)

In the 1980s the Archives was reorganized into Record Groups, and William LeFurgy published a guide describing  the Archives by Record Group.

• There is a guide translating WPA numbers to the new Record Group number system
• Many of the record groups were microfilmed, and security copies were deposited at the Maryland State Archives.