Obituary: David Warren Knudsen GRAY - David Warren Knudsen, amazing husband, father and grandfather, died on June 15, 2021 at the age of 93. David ... Share David Warren Knudsen GRAY – David Warren Knudsen, amazing husband, father and grandfather, died on June 15, 2021 at the age of 93. David was born in Portland to Helen (Warren) and Albert Knudsen. The youngest of three children, his early years were spent on the family’s farm in Gray until they moved to Portland, then South Portland, and Scarborough. After graduating from Scarborough High School in 1945, David served in the Army as a Signal Corps Radio Operator, including a short tour in South Korea. He continued on to college and received degrees in electrical engineering from the University of Maine (B.S., 1951), University of New Hampshire (M.S., 1965), and Rensselaer Polytechnic Institute (Ph.D., 1972).