New fuel pump, Half a full tank of gas, Won’t Crank

Gentleman. A couple of couple of months ago I have to pump gas out of my tank due to a hurricane causing a gas shortage. Had to have it ready to be put it in my company van if necessary. Well didn't have to so I put it back in my 65 Sport Fury. Drove the car had no problems. One day I noticed some small pieces of black looking pieces of trash in my clean gas filter. I changed the filter. Needed to any way. Just figured it was trash from the tank. Drove the car the next day with not problems...

New fuel pump, Half a full tank of gas, Won't Crank