Sentence 1: In 1944 he accompanied the American geologist De Golyer to Persia when Everette Lee DeGolyer assessed the reserves of the Middle East .
Sentence 2: He accompanied the American geologist De Golyer to Persia in 1944 when Everette Lee DeGolyer was assessing the reserves of the Middle East .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?