Until I did a DNA test, I wouldn't have been able to help you, and my answer will not help much right now.
I have connected with people that are my second cousins, and we are related through a grandparent, a great-grandparent, and also through a great-great grandparent.
I wasn't familiar with their names and had my doubts, but when I talked to my 85 year old mother, she confirmed the relationships.
Having said that, I have to agree with Herbert Tardy and say that a family tree with sources is your best bet in confirming your relationship with a second cousin.
Good luck on your hunt!