What team is this? When?

This young Minneota baseball team posed in the 1950s sometime. Does anyone know what team it was or the exact year?

They are: (front row, left to right) Dick Culshaw, Jerry Sanders, Rodney Christianson, John Stalpes, Ron Davidson, Steve Kjorness and Jack Finnegan.

Back Row: Sherwood Hawley, Pat Tillemans, Jim Lozenski, Don Amundson, Jerry DeCock, John Hall Roberg, Rich Lozenski and Tom Brewers.