"Irish Terms". Early Gaelic Harp Info. 21 October 2002. Archived from the original on 19 April 2013. Retrieved 9 October 2013.
"History (19th century)". Early Gaelic Harp. Archived from the original on 25 November 2019. Retrieved 16 November 2007 – via www.earlygaelicharp.info.
Sanger, Keith (ed.). "The final chords". WireStrungHarp. Last Scottish harpers. Archived from the original on 31 October 2014. Retrieved 13 May 2013.
"History (19th century)". Early Gaelic Harp. Archived from the original on 25 November 2019. Retrieved 16 November 2007 – via www.earlygaelicharp.info.
"Ann Heymann". Portland Clarsach. Archived from the original on 6 May 2012. Retrieved 9 October 2013 – via Pdxclarsach.wordpress.com.
"About EIHF". Edinburgh International Harp Festival. Archived from the original on 3 February 2022. Retrieved 3 February 2022.
wirestrungharp.com
Sanger, Keith (ed.). "The final chords". WireStrungHarp. Last Scottish harpers. Archived from the original on 31 October 2014. Retrieved 13 May 2013.