Based on boiling 6.00 gallonsliters at 1.050 for 60 minutes, this will decrease your wort by 1.00 gallonsliters, bringing your after boil OG to 1.058. You wanted an OG of 1.059. It looks like it will be under.
Recipe for from partial grain sheets from local brew shop (The Brew Stop and DeFalco's both had these sheets). Used their directions. Filled 3 Tap-A-Draft kegs and 1 16 oz. bottle.