The MacCallum/Malcolm DNA Study welcomes all male MacCallum/McCallum/Malcolm surnamed and clan variant surnames descendants to participate in the DNA study. The goal of the study is to establish genetic connections between all MacCallum/Malcolm descendants. *UPDATE* in 2010 - ALL Clan MacCallum/Malcolm and listed surname variant descendants are welcome to join the MacCallum/Malcolm DNA Study if they order or have already taken Family Tree DNA's new Family Finder autosomal DNA test.