Answer
Yes, John Lubbock was a member of the Liberal party. He was a member of the British House of Commons from 1870 to 1885, and served as Chancellor of the Exchequer from 1880 to 1885. Lubbock was a strong supporter of free trade and social reform, and he played a key role in the passage of the Reform Act of 1884, which extended the vote to more working-class men.