Bentley's Miscellany - Google Books: edited by Charles Dickens, William Harrison Ainsworth, Albert Smith
4 mentions of Issganelshagek
https://books.google.ca/books?id=rd4RAAAAYAAJ&pg=PA157&lpg=PA157&dq=Isheganelshagek%20Lake&source=bl&ots=AgANbYsRiL&sig=ACfU3U3Ht6Fc4yJrAklriedG10LRgNeiQg&hl=en&sa=X&ved=2ahUKEwiok83PpsT3AhUEXc0KHTalB24Q6AF6BAgXEAM#v=onepage&q=Isheganelshagek&f=false
