There are many species of mud dauber wasp. The black and yellow mud dauber, Sceliphron caementarium, is a species of sphecid wasp. Chalybion is a genus of blue mud dauber wasps in the family Sphecidae. The organ pipe mud dauber ("Trypoxylon politum") is a predatory wasp in the family Crabronidae. The pigment was applied with a dauber, similar to making a rubbing from a gravestone. He also used the names Hamfoot Ham, Hillbilly Plowboy, and Mud Dauber Joe. Screen story was written by Jeremy Dauber, currently an assistant professor at Columbia University. The organizer of the petition was Stanford law professor Michele Dauber. Dauber married her husband Ken in 1997. Dauber also has three children from a previous marriage. Dauber graduated from the University of Illinois at Chicago in 1993.