william mackay is my great grandfather. my grandfather was jesse mackay who was the auditor at one time in madison. my mother was mary elizabeth mackay donovan who just recently died...we have been going through tons of boxes with hundreds of old pictures of our family in madison. i live in new hampton,iowa which is about 400 miles away. i do have a sister though that teaches in siseton,south dakota. my great uncle earnst robert macdonold ran the big place at the lake...no way i can spell it chattaqua? and the hotel on maim street..if you would be interested in looking at the pictures we could send some with my sister who comes to new hampton to visit and she could drop them off or i could mail you compies. my sisters and i grew up vacationed at our grandparents and loved every moment there.we often talk about coming back and buying something on the lake as we vacation at okoboji in the summer....my grandmother hazel was a macgillvery..great to see our g.grandfathers house as one of your land marks.jesse and hazel built the georgian home on egan avenue across the street to the side of the berther home..nice to tlk to you good luck with your huge project.