I had planned on removing dead young and cold eggs that were in the second week of incubation.
My plans were changed upon this nest check.Upon lowering the rack, several females exited the gourds that were into their two week incubation period. I checked the gourd with the six dead young and found the nest empty. I then checked the four gourds with the two week incubation (3 nests having 5 eggs, one with 6) and found 2, 3, 4, and 0 eggs in the nests. The eggs in the nests were found warm to the touch and left as is.
I then checked the two gourds with young that was just hatching on the 15th. I had thought that three of these babies were dead, but only found one missing, and the other two alive and well! The three that I thought were dead were cold to the touch and lifeless on the 15th. I was wrong that day. With them being so small, it was very hard to tell a cold chick near death was still alive.
I then raise the rack and began looking around the ground for any signs of missing eggs or babies. I found two complete eggs within ten feet of the rack. I found six complete eggs and three cracked eggs within a 20 foot circle approximately 75? from the rack straight out from the direction of the gourds with missing eggs. No babies were found. I then checked the eggs and found five with young within a week of hatching. The other eggs were either milky or only showing very early stages of development.
I watched to see if the pair with the six dead young would return. Nothing for one hour. Then the male showed up with insects in his mouth and entered the empty gourd. After a few moments he stuck his head out with no insects seen. Did he eat them or leave the insects in the nest? Not sure. The female then showed with insects. He exited and she entered. After a few moments, she stuck her head out but still had the insects. After some time she exited still holding the insects in her mouth. Both male and female entered the gourd for the night.
What have I learned? Don?t be quick to remove eggs or dead young. Wait a day or two and let the adults handle the problem as Mary, Bob, Angela, and others suggested.
If the dead young are still there a day or two later, then remove them. You could be mistaken thinking the young are dead when they are not as I was. 
Thanks to all for the good advice. Hope this helps others.
PS
Started the day on a brighter note this morning. Clean shot on one starling atop one of my gourd racks. Never knew what hit him.
