You may want to look at this site: http://seekingmichigan.org
In their death certificates database they list 'Frank S. Donaldson,' 1850-1909, son of Francis Donaldson and Lufanna LEEK, a travelling salesman, died Kent Co, MI, buried Middleville, Barry Co, MI. Informant for certificate was Mrs. Libbie Fisher, his sister. I believe this is the disgraced lawyer you are looking for. He was a very distant cousin of mine.
I would be interested in sharing information about this family if you are interested.