Lecture topics: Schwartz Reflection Reviewed; Green’s Function for Upper Half Space Reviewed; C^{2,alpha} Boundary Estimate for Poisson’s Equation for Flat Boundary Portion; Global C^{2,alpha} Estimate for Poisson’s Equation in a Ball for Zero Boundary Data; C^{2,alpha} Regularity of Dirichlet Problem in a Ball for C^{2,alpha} Boundary Data.