There appears to be no proof of the existence of Isabell SISSON.
The SISSON GENEALOGY Site has nothing on a daughter of Stanley and Catherine (KIRKWOOD) SISSON named Isabell. The site at http://homepages.rootsweb.ancestry.com/~dasisson/robert/aqwg05.htm#42 has eight (8) children listed for Stanley and Catherine, but no Isabell.
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Featured National Park champion connections: Isabell is 17 degrees from Theodore Roosevelt, 22 degrees from Stephanus Johannes Paulus Kruger, 17 degrees from George Catlin, 16 degrees from Marjory Douglas, 22 degrees from Sueko Embrey, 17 degrees from George Grinnell, 26 degrees from Anton Kröller, 17 degrees from Stephen Mather, 23 degrees from Kara McKean, 15 degrees from John Muir, 17 degrees from Victoria Hanover and 21 degrees from Charles Young on our single family tree. Login to find your connection.