Sentence 1: In 1934 he was co-founder of the Badminton World Federation ( now International Badminton Federation ) , of which he was president from 1934 to 1955 .
Sentence 2: In 1934 , he was co-founder of the Badminton World Federation ( now International Badminton Federation ) , whose president he was from 1934 to 1955 .
Question: Do Sentence 1 and Sentence 2 express the same meaning? Yes or No?