I'm descended from Collin McClelland through his son, John C. McClelland of Niagara County, NY. As you know, John McClelland's death record indicates Collin was born in Schenectady and Collin's military enlistment records indicate both Saratoga County and "Orange" in Saratoga County. "Orange" was the name for Halfmoon, NY in Saratoga County from 1816 to 1820. I've found a McClelland family from Halfmoon at that time - Daniel McClelland who married Ursala Jacobs. I don't know whether these were Collin's parents, but it seems possible. Also, Daniel McClelland and his son, Richard, lived up in Niagara County (like Collin McClelland) for several years before moving West to Iowa. And some trees have Daniel's father's name as "Colin McClelland", a Scottish immigrant who died in Saratoga County around 1800. Still trying to find a link between Collin McClelland and these other McClellands.