These guys would know.
26 Former U.S. Officials Oppose Bush
Regarding CFR overlap, Leslie Gelb would be a name that comes to mind. There are also some financial ties through philanthropies that trace back to Rockefeller and Ford Foundation money (historically the main financiers of CFR since WWII). But I think CFR is broader in scope than the individuals involved and there are some other think tanks that are probably more directly associated with the persons of interest, notably the Institute for Policy Studies (IPS) and various affiliated groups. CFR kind of split into a couple different spinoffs after the Vietnam War, with the IPS faction going off in one direction. I think the individuals under discussion have tended to form their own IPS-style "mini-CFR" think tanks, which I'd need to refresh my memory on the names of--there are so many these days. The Fourth Freedom Forum and Secure America Project (tied to David Cortright of Win Without War) are a couple Joseph Wilson and some of the usual suspects from the CFR's IPS wing (Anthony Lake, Morton Halperin) as well as Robert McNamara (who has kind of floated from the non-IPS wing of CFR towards the IPS types since Vietnam) were hanging around recently that you might look into.