I found an updated Oregon Geographic Names book - 7th edition and added several new place names on the Place Names Page.
If you want to view the book, you can see it for free here - you just need to create a free account:
Oregon Geographic Names - Seventh Edition
If you find something I missed, please post it here and I can add it.
Thanks for these additions. It's always interesting to know the origins of familiar place names.
Another name which could be added to the list is Lake Lenore. According to an obituary published in 2010, it was given the name by the USFS as a birthday gift to one of their fire lookouts, Alice Lenore Gensman. https://obits.oregonlive.com/us/obituaries/oregon/name/alice-gensman-obituary?id=18703312
The lake is not named on maps until the 1958 Estacada District map labeled it "Lake Leone." Same thing on the 1963 map. Later maps show it as "Lake Lenore."
Thanks for the addition! It has been added to the page.
Feel free to peruse the updated Place Names book. It is over 1000 pages - I skimmed looking for names I recognized in the Clackamas District but I could easily have missed some. It is free to look at, although you have to create a free account to "checkout" the book (which seems weird for an electronic book).
If you find any others, let me know and I'll be happy to add them to that page.