Issue: #69
Marcel Dalton is the Daltons' oncle, an honest banker who arrives from Switzerland to run a small bank at Mosquito Gulch. Lucky Luke will escort him, as James Swindler, owner of a banking monopoly, hires the Daltons to chase their oncle.
Creators: Morris, Bob De Groot
Characters: Jolly Jumper, Jack Dalton, Averell Dalton, William Dalton, Joe Dalton, Lucky Luke