They are listed as being 28 and 26 years old in the 1870 census. The third may have been William, I have to check this out further. On the original papers I have it looks more like Burcher than Brucher, recently while in NY I found the census for 1865, it is clearly Brucher, with the same names listed. It looks more like Passmore than Pupmore on that listing too. The land the Brucher family owned up in Bethel is now owned by the State of New York.
Lake Superior is a state park now.
It may just be a mention of a name, and mean nothing to me, but it may mean something to someone else. You may be able to use this to find further information. For instance if you note a Brucher name added to the SS listing and go to the newspapers for the area you may find further information in an obituary. When I notice this I put them back on.