Billings, Montana and/or yellowstone - Illinois = Ava Illinois and Effingham - Pennsylvania = I don't know - also Smokey mountains could have been another place too..but the above for sure..1923-1925 Illinois for sure - Billings, Montana 1937-1941 for sure and possibly earlier like 1931. Ohio, Wyoming, California are places that I've heard they may have gone to visit..My man i'm looking for was in the oil profession of some sort and The wife was from England initially born 1889...Relatives lived in Ohio...Thank you..