Sentence 1: He was born in New Westminster and worked on the lower Fraser and Yukon River star cyclists before coming to the upper Fraser River in the early 1900s .
Sentence 2: He was born in New Westminster and worked on the lower Fraser and Fraser River cyclists before coming to the Upper Yukon River in the early 20th century .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?