 Prior to joining the Maryland House of Delegates, McClenahan was a project director for the Somerset County Community Action Agency from 1966 until 1976.Since 1979, he has been a partner and chair of Landmark Insurance, Inc.In addition to his career, Delegate McClenahan is also active in many organizations, including being a member of the board of directors for the Lower Shore Sheltered Workshop from 1971 until 1978, the J. Millard Tawes Foundation since 1980, and the United Way of the Lower Eastern Shore since 1986.