Sarah's mother and father were John and Mehitable (Braybrooke) Downing. John's parents were Emanuel and Lucy (Winthrop) Downing. Lucy was John Winthrop's sister. Mehitable's parents were Richard and Joanna Braybrooke. I don't know Mehitable's maiden name.
You're right, Jill, Downing College is part of Cambridge University. I also believe that the Downing Street area in London was originally owned by the Downing
Any infomation about the Downing family you can provide me will be greatly appreciated,