At Oxford c1960 women chant slogans against "the patriarchy". However, the concept of "patriarchy" in the modern feminist sense was only developed about ten years later.
A fisherman agrees to take Rose in his small open boat from Lough Dan (where she is staying) to Baltimore (to join the others at a safe house). However, Lough Dan is a lake with no connection to the sea, and even if it weren't the 200-mile voyage to Baltimore would be practically impossible in such a vessel.