I am searching for this line I know they had a son William John Grenfell born August 10, 1865 in Michigan, died December 27, 1943. William is buried in Grass Valley, CA. His brothers were Roy and Clarence. Will was an artist, and had a son Donald, who had a son Richard. Richard had a son, I have no name for him, but was told that he went to Stanford University in the 70's and is now a lawyer.