There is now a Saggers DNA Project at FamilyTreeDNA.
This is a very new project including Y-DNA, MtDNA and autosomal DNA and we will be happy to include those with or related to the Saggar, Saggars, Sagger, or Saggers surnames.
Have a look at the video here.
“The Story of You – Discover Your Journey”, FamilyTreeDNA video, YouTube, published on 1 Dec 2015.