Historical sketch of the Sabbath-schools connected with the First Presbyterian Congregation of Pittsburgh

Ancestry.com. Historical sketch of the Sabbath-schools connected with the First Presbyterian Congregation of Pittsburgh [database on-line]. Provo, UT: Ancestry.com Operations Inc, 2005.Original data: McKnight, David A.. Historical sketch of the Sabbath-schools connected with the First Presbyterian Congregation of Pittsburgh : from A.D. 1800 to A.D. 1867. Pittsburgh: Printed by Bakewell & Marthens, 1867.