found: Sinclair, O. Gretna Green, 1989:t.p. (Gretna Green) p. 1 (village just across border of Scotland)
found: BGN UK gaz., 1951(Gretna Green; pop. pl.; 52 ̊32'N, 0 ̊40'W)
found: Bartholomew, 1986(Gretna Green; 1 km. north of Gretna)
found: Overland Trails Digital Library Collection, 2002(Gretna Green (Dumfries and Galloway, Scotland))
found: GeoNEt, May 29, 2002(Gretna Green, populated places, United Kingdom 54deg.59min.00sec.N 003deg.04min.00sec.W)
found: Great Britain Road Atlas, 1983:p. 121 (Gretna Green, Dumfries and Galloway, Scotland)
found: GeoNames, algorithmically matched, 2009(ppl; 54°59ʹ00ʺN 003°04ʹ00ʺW)