I was able to complete editing the Wikipedia article about Isaac Galland. This was really challenging, because the photograph of the George Caleb Bingham portrait is copyrighted by the photographer, and Wikipedia has blocked the website where it is hosted. The website link goes to a gallery and it is difficult to find the exact photo you are looking for; also they apparently have had several broken links referring to images on the travelphotobase.com website.
Isaac Galland was a very complex person. He did many great things, yet he had a dark side.
Susan Easton Black wrote an article called "Isaac Galland: Both Sides of the River, found at http://www.mormonhistoricsitesfoundation.org/publications/nj_fall1996/Black.pdf, which shows Isaac's both sides.