Clark, D. (1988). The heart's own people: The Donegal Society of Philadelphia, centennial 1988, a history of the Donegal Beneficial, Social, Charitable and Patriotic Association of Philadelphia. Newtown Square, Pa.: Harrowood Books.

Clark, Dennis. The Heart's Own People: The Donegal Society of Philadelphia, Centennial 1988, a History of the Donegal Beneficial, Social, Charitable and Patriotic Association of Philadelphia. Newtown Square, Pa.: Harrowood Books, 1988.

Clark, Dennis. The Heart's Own People: The Donegal Society of Philadelphia, Centennial 1988, a History of the Donegal Beneficial, Social, Charitable and Patriotic Association of Philadelphia. Newtown Square, Pa.: Harrowood Books, 1988.