Microsoft’s founding employees gathered in 1978 to take a portrait before the company moved to Washington. Front row (left to right): Bill Gates, Andrea Lewis, Marla Wood, and Paul Allen. Middle row: Bob O’Rear, Bob Greenberg, Marc McDonald, and Gordon Letwin. Back row: Steve Wood, Bob Wallace, and Jim Lane. Not pictured is Miriam Lubow.
Picture taken at Royal Frontier Studios, Albuquerque. Copyright Microsoft, who distributes the image in some press releases. (Source)