I have material on the Wyllie, Dunlop, Maxwell families of Scotland.  Am working especially on the Adam Maxwell of Southbar, Renfrewshire, line, starting with his descendant, George of Southbar whose grandaughter married (1761) Hugh Wyllie, Provost of Glasgow. George's daughter Henrietta married (1722) James Dunlop of Garnkirk. Your quiry sounds very much as if we might be looking for some of the same people. Hope you are still interested! Kate