#	Person	Titel	Jahr
1	Pfennig, Robert	The Clergy in the Ancestry of Wilhelm Pfennig (1581-172)	1993
2	Pfennig, Robert H.	William Pfennig and Marie Schwander : Their Lives, Ancestry and Descendancy, 1400-2007 ; An annotated Ahnentafel and Listing of Descendants	2007
3	Pfennig, Wilhelm	William Pfennig 5 July 1843-23 June 1934 : additional writings from old church record book ; Pfennig Reunion 5 July 1998	1998