The Sin - Mac tug JOHN PRATT is seen alongside the barge PETER G. CAMPBELL in the 1934 season in the Century Coal slip at Toronto. Photo by Jim Kidd. This Taylor photo shows PETER G. CAMPBELL downbound on Lake Huron after her winter 1934-1935 conversion to a motorship. PETER G. CAMPBELL is seen in winter quarters alongside EASTERN SHELL (i) after her pilothouse was moved forward in 1946, and before she became RIVERSHELL in 1950.