p. 531: He [Seward] had that insatiable expansionist Robert J. Walker draw up a report in 1867 on the resources and geopolitical importance of Greenland and Iceland. [Walker wanted to purchase them for resources but also to encourage annexation of Canada by the US. Seward had it printed.]
See also Miss Valley Hist. Rev 27 (Sept 40) 263-6; Polar Record 21 (Sept 1982, and Arctic 34 4 (Dec 1982) 370-76