This is where Margaret Roberts lived when she was a child. She married Mr Thatcher and became the UK's first woman Prime Minister.

"Margaret Thatcher's political career has been one of the most remarkable of modern times. Born in October 1925 at Grantham, a small market town in eastern England, she rose to become the first (and so far, the only) woman to lead a major Western democracy. She won three successive General Elections and served as British Prime Minister for more than eleven years (1979-90), a record unmatched in the twentieth century." taken from http://www.margaretthatcher.org