In this paper we will focus on the Hallams, major originators and sustainers of the eighteenth-century American theatre. We have not attempted to write their biographies, only to present new information that can provide answers to long-standing questions and suggest alternatives to earlier assumptions. Among other things, we present the case for George Hallam, not Thomas, being the father of the line of actors; we have established the probable paternity for Nancy Hallam; we have discovered the wills of both William Hallam and Lewis Hallam II; we have more fully identified Lewis II's first wife, Sarah Perry; and we have found new information concerning his second wife, Eliza Tuke.