At familytreedna.com, there are 10 Ralstons who have DNA-tested and assume they are males with yDNA tests.
However, there seems to be no real Ralston (and variant spellings) Project. An administrator has been assigned but seems not to be active.
The cost for a 37-marker test is, I believe, about $130 if you join through the project.
This test is a straight line male test and only shows biologically related males and can help sort males into related family groups. Tests only show that males have or do not have a common ancestor and can help point you in the right direction.
I WOULD LIKE TO HEAR FROM ANY OF THE 10 TESTED RALSTON MALES TO LEARN OF THEIR LINEAGES.
And I would encourage any Ralston male to take this test.