When Mary Gray was born in 1850, in Minto, Roxburghshire, Scotland, United Kingdom, her father, James Gray, was 28 and her mother, Margaret Archibald, was 24. She lived in Saint Cuthberts, Edinburgh, Midlothian, Scotland, United Kingdom in 1871 and Newington, Midlothian, Scotland, United Kingdom in 1881.
English, Scottish, and Irish (especially Eastern Ulster; of Norman origin): habitational name from Graye in Calvados, France, named from the Gallo-Roman personal name Graec(i)us, meaning ‘Greek’ + the locative suffix -acum. This is probably the chief source of the surname in Britain.
English: nickname for someone with gray hair or a gray beard, from Middle English grey (Old English grǣg, grēg) ‘gray’. In Ireland it has been used as a translation of various Gaelic surnames derived from riabhach ‘brindled, gray’, including Mac Giolla Riabhaigh; see McGreevy . In North America, this surname has assimilated names with similar meaning from other languages.
French: habitational name from Gray in Haute-Saône or Le Gray in Seine-Maritime.