Abel Wolman was an American inventor, scientist, professor and pioneer of modern sanitary engineering. The papers trace Abel Wolman's active career as teacher, consulting engineer and advisor to local, national, and international agencies and include correspondence, documents, and files documenting his various activities from 1901-1989.

This subseries contains files associated with project and grant requests that Mikulski's office received. Project files document assistance from Mikulski's office to an organization or community in their interactions with one or more federal agencies on an issue.

This subseries contains correspondence, scheduling materials and meeting notes for Mikulski and her staff, travel records, political planning materials, and administrative files associated with Mikulski's office operations in Washington, DC and state offices. Examples of material that may be found in this subseries include staff manuals, "NAV" folders prepared to brief Mikulski for events and meetings, staff memos, form letters, and constituent correspondence.

This subseries contains legislative materials related to committee work, drafts of bills, and floor activity.