Helen L. Harriss

• Two lists of early residents in southwestern Pennsylvania
• Abstracts
• Allegheny County, Pennsylvania, research in the courthouse
• Baptisms in Trinity Parish Register I
• Burials in Trinity churchyard
• Marriage Records of Squire Isaac and Joseph F. Mayes [Allegheny Co. Pennsylvania]
• Marriage records of Squires Isaac and Joseph F. Mayes
• Will abstracts of Allegheny County, Pennsylvania