I'm sorry I didn't see your post until just now! Yes, Michael Ernest Brennan-Murray was my grandmother May Murray's first cousin. My great-grandfather was Henry Murray, brother of Michael's father, William S. Murray. I wish I knew more about the store in the picture, or when the photo was taken...but I wouldn't be surprised at all if it was your family's store. Michael and Laura Quinn had a boatload of children (12?). My direct email is firstname.lastname@example.org
. If you send me an email, I'll send you an invite to the family tree. Cheers!