This Thursday, The White House 1600 Sessions introduces listeners to the role that keeps the Executive Mansion running every hour of every day. White House Historical Association President Stewart McLaurin sits down with Gary J. Walters, author of the upcoming book White House Memories 1970 - 2017: Recollections of the Longest Serving Chief Usher, to reflect on his 37-year career serving seven presidents and their families. From State Dinners to holidays to more solemn moments, Gary shares what