↑"Washington precipue tribuendum est quod Potomacus flumen navigantibus accomodatum est" et "Aedes ex saxo, vetustae, vastae, ex excelso loco, Potomaci immensitatem haud procul porrectam" (in litteris a Ioanne Copley Ricardo Bellward Universitatis Cantabrigiensis anno 1795 scriptis, in William Heath Bennet, Select biographical sketches form the note-books of a law reporter (G. Routledge and Sons, 1867), Appendix, p. xv., divulgatis.
↑"Potomacus fluvius terminus est inter Virginiam et Mariae Terram (Maryland), duas enim civitates Americanas" (Rumor Varius a Societate Latina Turicensi vol. 22, fasc. 127 [Ianuario 1999], p. 16).
↑Potomacus pottsi,binomen novi organismi descripti anno 1966 ab Iesse C. Thompson Minor ("Potomacus pottsi n. g., n. sp., a Hymenostome Ciliate from the Potomac River," Journal of Eukaryotic Microbiology 13:459–462, doi=10.1111/j.1550-7408.1966.tb01938.x).
↑"Vernonius mons, ripâ Virginiensi Potomac fluminis, ubi duo milliaria latum, pulcherrimè situs est" (Francis Glass, A Life of George Washington, in Latin Prose, ed. J. N. Reynolds (Novi Eboraci: Harper & Brothers, 1835), pagina 133.
↑Charta coloniam Terrae Mariae, a Carolo I Rege Caecilio Calvert, Barono Baltimorae, die 20 Iunii1632, concessa, ait: "usque ad verum meridianum primi Fontis Fluminis de Pattowomack" (Maryland State Archives: Archives of Maryland, Volume 3: Proceedings of the Council of Maryland, 1636-1667, p. 3.