Well, I walked the whole section from greyrock bridge to Bridges put-in tonight, on river right, and did not see anything. I'm sure if someone found them they probably held on to it, they were pretty nice, new oars. I did have a name and phone number written on both the colored tape on the blades, which may have been shredded off, and on the blade itself (you have to look closely).
I guess that's what I get for being a silly girl trying to keep up with the boys. I'm new to the sport and suppose I did not know better with picking out gear. I was testing a new style with putting an oar frame on a shredder. It was fun while it lasted. Now I just need a cheap pair of oars, that float!
Raftus, thanks for the tips on painting them. If karma returns them to me I will surely take your advice.