Peter Cummings, Chair of the Prince Henry Project Committee, played a major role in the 1998 600th anniversary celebration of the alleged discovery of America in 1398 by Henry Sinclair, Jarl of Orkney (1345-1400)

Henry S. C. (“Pete”) Cummings
-Sinclair’s Exploration of America (600th Anniversary Celebration, The Prince Henry Project Committee, 1998)
-Genealogy of St. Clair and Sinclair Families (self-published, 1998)
-Sinclair Symposium Narratives (The Prince Henry Project Committee, 1998)
-Sinclair's Voyage To America (self-published, 1998)
-Genealogy of Prince Henry Sinclair (Salem, MA: Higginson Book Company, 1998)
-Wee Sinclair Legends (self-published, 1998)