Subject matches "Ralston, David" or its children

Megan Jamison and Dave Ralson haul equipment onto Tioga.

Ken Houtler, Dave Ralston and Jay Sisson with a recovered mooring.

Ken Houtler assists as Dave Ralston and Jay Sisson work with a mooring.

Ken Houtler assisting as Dave Ralston and Jay Sisson work with a mooring.

Postdoctoral scholar Dave Ralston and Jay Sisson with a recovered mooring.

Postdoctoral scholar Dave Ralston and Jay Sisson with a recovered mooring.

Postdoctoral scholar Dave Ralston and Jay Sisson with a recovered mooring.

Postdoctoral scholar Dave Ralston and Jay Sisson with a recovered mooring.

Postdoctoral scholar Dave Ralston and Jay Sisson with a recovered mooring.

Postdoctoral scholar Dave Ralston and Jay Sisson with a recovered mooring.

Postdoctoral scholar Dave Ralston and Jay Sisson with a recovered mooring.

Postdoctoral scholar Dave Ralston and Jay Sisson with a recovered mooring.

Postdoctoral scholar Dave Ralston and Jay Sisson with a recovered mooring.

The Tioga fantail with Dave Ralston and Jay Sisson awaiting a mooring recovery.

Ken Houtler, Dave Ralston and Jay Sisson on the Tioga fantail.

Ian Hanley, Dave Ralston and Jay Sisson on the Tioga fantail

Ian Hanley, Dave Ralston and Jay Sisson on the Tioga fantail

Ian Hanley, Dave Ralston and Jay Sisson on the Tioga fantail

Dave Ralston and Jay Sisson examine a recovered tripod.

Dave Ralston and Jay Sisson examine a recovered tripod.