Complex sentence: B. Wolverton Town & B.R. went through a variety of names after the founding of Milton Keynes in 1967, dropping "B.R." in 1981 before adding "(Milton Keynes)" in 1987 to become Wolverton Town (Milton Keynes).
Split into simpler sentences: B. Wolverton Town & B.R. went through a variety of names after the founding of Milton Keynes in 1967. It dropped the "B.R." suffix from its name in 1981, then added "(Milton Keynes)" in 1987, becoming Wolverton Town (Milton Keynes).