Samuel Morgan Niblack was an actor with Thanhouser during the 1914-1917 period. In some credits he was listed as Samuel Niblack; in others as Morgan Niblack.
Samuel Morgan Niblack played supporting roles in numerous Thanhouser films from at least 1914 through 1917. Earlier a conductor with the New York Central Railroad, he was a personal friend of Edwin Thanhouser. In the spring of 1915 he was with World Film Corporation at the Mittenthal Studio in Yonkers, New York, but he returned to Thanhouser shortly thereafter. In June 1916 he was among the employees whose employment was terminated because of an unfavorable business outlook. However, he worked there on a project basis for a number of months afterward. He then left Thanhouser and went to Edison, for whom he acted in various films, including the 1917 releases of Kidnapped (Forum for Edison) and Light in Darkness.
Bowers’ own filmography list is left out here: the filmography above lists the same films. Cite as: Bowers, Q. David. Thanhouser Films: An Encyclopedia and History, “NIBLACK, Samuel Morgan.” thanhouser.org/research/people/samuel-morgan-niblack/