Complex sentence: The ship proceeded via Mare Island, where she underwent an overhaul period, the Panama Canal, Santo Domingo and Hampton Roads, bringing her voyage to a close on 21 June 1922.
Split into simpler sentences: The ship proceeded via Mare Island, where she underwent an overhaul period. Following that was a transit through the Panama Canal, Santo Domingo and Hampton Roads, bringing her voyage to a close on 21 June 1922.