Stephen Albert McMillan (July 6, 1941 â April 28, 2022) was an American politician and real estate broker. From 1980 until his death, he was a member of the Alabama House of Representatives representing the 95th District (lower Baldwin County), first serving as a Democrat before switching to the Republican Party in 1989. He was first elected to succeed his twin brother, John McMillan. At the time of his death, he was the longest-serving member of the Alabama House of Representatives.