Find first date in a row

I have a table with 3 dates in a row.

First                   Second                  Third
6/27/2014 6:45:00 AM    6/27/2014 7:36:00 AM    6/27/2014 7:00:00 AM

Is there a way to write a statement that will select the earliest date in this row?

In this case column First is the earliest, but this could vary from row to row.

---

.samuel