Pencils credit suggested by Who's Who at www.bailsprojects.com.
Script credit from Martin O'Hearn at http://martinohearn.blogspot.com/
Gaylord Du Bois script credit for Pteranodon as per page 174, "Gaylord Du Bois's Account Books, Sorted by Title, compiled from the original account books by Randall W. Scott." Gaylord Du Bois script identification confirmed by David Porta, April, 2016.