Summer House Swap

We're a family of four (two adults and two teens), coming to the UK from New York City this summer for work and pleasure. Helen is an English professor with grants to research Bronte material and is bringing the family with her.
We'd love to do a house swap. Our place in Brooklyn will be available for all or part of the time we're away (July 1-13), although we only need to find housing in London for the first week (or less). After that we'll be in Yorkshire (where we would also be interested in swapping).
Our home is an updated single family Victorian house in a leafy neighbourhood. Here's our home exchange listing for details and pictures.
Please note we have two cats - very social, very sweet.
Email hkapstein@jjay.cuny.edu if you or someone you know is interested. Thank you.