James Green created the Marjoribanks DNA project in 2014.
Ira Don Marchbanks was the first member to take a DNA test (the 37 marker Y-DNA STR test).
Roger Marjoribanks joined this Marjoribanks DNA Project and took a DNA STR test.  His results came back on June 26, 2009.
Roger Marjoribanks took the Big-Y and Family Finder tests in 2021.