Sentence 1: He fought Mike Donovan in a battle headed by a young 21-year-old Wyatt Earp on 4 July 1868 or 1869 in Cheyenne , Wyoming .
Sentence 2: He fought Wyatt Earp in a battle led by a young 21-year-old Mike Donovan on 4 July 1868 or 1869 in Cheyenne , Wyoming .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?