Supplementing the Chronological Files of this period are NASA Sensitive Chronological Files and the Apollo Memoranda. Apollo Memoranda is composed of a complete set of GML's Apollo Notes for Dr. Gilruth. These Notes, providing a nearly daily record of GML's activities and concerns during his management of the Apollo Spacecraft Program Office, functioned as a direct communication channel to the Manned Spacecraft Center's director, Robert Gilruth. The memoranda and their enclosures discuss contractor negotiations, schedule status, budgetary concerns, Manned Spacecraft Center/Kennedy Space Center relations, and ongoing planning. Also included are descriptions of Configuration Control Board meetings, and discussions and meetings with contractors and others regarding changes in the development, manufacture and testing of hardware, systems and spacecraft. In addition, the Notes record the opinions of GML and others regarding individuals, programs and organizations.