Charles Henry Dudley Ryder British surveyor in India (1868–1945) Parents Julia Money Spencer Charles Dudley Ryder Children Ernle Terrick Dudley Ryder Lisle Charles Dudley Ryder Enid Muriel Maney Ryder Robert Ryder Ida Margaret Clare Ryder Violet Constance Ryder Siblings Wilfred Ironside Ryder Edward Dudley Ryder Mary Ryder Una Sophia Ryder Spencer Charles Dudley Ryder Partners Ida Josephine Grigg