There is a gentleman named, Harry.....(Do not know his last name); who lives in Keene, NH.He has researched Catherine Fisk's Genealogy for the Keene State College (or so he told me).
I not have an email address for Harry. I can tell you one way that he could be reached; whereas, he is a volunteer at the Cheshire County Historical Society; Main St., Keene, NH.He would respond to a note from you as he is very passionate about the research on this name.
Just so you will know, I met, Harry, at the His. Society; some years ago, and have conversed with him many times.He is very helpful; although, he could not help me find my Fisk Line; which is, coincidently, tied into that of Eunice Fisk (Sister to John and Benjamin of Waterbury Center, VT) (I just read your chat back and forth with Sally on Eunice).
I will be pleased if this info. helps you, and will watch for more on it on the site.