The CDSTI bylaws specify the membership qualification, classes of membership, and the membership dues. The membership application on this page is good for a new member or a renewal. Please contact our President or our Treasurer for more information.
CDSTI Membership is open to persons bearing the names Duncan and Robertson and to those bearing the names of the accepted Septs of the Clan Donnachaidh, either by parentage or by marriage, and all lineal descendents in the female line and their spouses.
The accepted Septs of Clan Donnachaidh include the names Collier, Colyear, Connachie, Conochie, Cunnison, Dobbie, Dobbin, Dobie, Dobieson, Dobinson, Dobson, Donachie, Donachy, Donnachie, Duncanson, Dunnachie, Hobson, Inches, Kynoch, MacConachie, MacConchie, MacConechy, MacConich, MacConnachie, MacCullich, MacDonachie, MacGlashan, MacInroy, MacIver, MacIvor, MacJames, MacLagan, MacOnachie, MacRob, MacRobb, MacRobbie, MacRobert, MacRobie, MacWilliam, Read, Reed, Reid, Robb, Robbie, Roberson, Roberts, Robertson, Robinson, Robson, Roy, Stark, Tonnach, Tonnochy, or other variations in the spelling of these names.