 He became group executive for the Electric Utilities Group in 1960, and retired in 1963.Linder was active in numerous professional groups.He was a fellow and president of the American Institute of Electrical Engineers and the Institute of Electrical and Electronics Engineers, fellow of the American Society of Mechanical Engineers, member of the American Society for Engineering Education and National Society of Professional Engineers, and active at the Massachusetts Institute of Technology, Harvard University, Vermont Academy, and Union College.