H1M ● Maternal DNA Haplogroup of Rosco Fanning You are are an inferred DNA test match cousin if you have not taken this test. This test shows the relationship with other testers who share this Maternal DNA Haplogroup. Haplogroup H is the most common and most diverse maternal lineage in Europe, in most of the Near East and in the Caucasus region. Haplogroup H1m is a subclade of haplogroup H.