Crowley DNA Project

The Crowley Clan project is a Y DNA project which means it studies the Y DNA of male Crowley’s only.

Y DNA does not tend to change very much at all from generation to generation which makes this type of test so reliable. 

I get a lot of inquiries from females who are descended from Crowley’s on either parents side. Because we are a Y DNA project they are not included in the testing process.    

If one male from a family has participated there is no need to do any more testing except perhaps to refine to a higher definition test. 

We recommend as a starting point the 37 marker test.  This level is specific enough and sensitive enough to define a relationship.  More refined testing can be added at any time for an additional fee, but there is usually no need to resubmit a test. 

What can I do to help ?

To enroll go the home page of Family Tree DNA  look for group projects in the upper left hand side of the home page, select “C”, then select Crowley Clan as the project. 

Once you have selected your test, (Y-37) completed your demographic information, and a payment method I am sent a join request which I approve.  If I have a question about the request I email the person privately to clarify.

I am always available to answer questions.  Please email me through


 contact form below.

Catherine E. Crowley Budd - 

Group Project Administrator