See also

• Mary COTTREL's parents: Cephas COTTRELL (1855-1934) and Harriet BARLOW (1852- )
• Mary COTTREL's siblings: Rowland COTTREL (1877- ), Stephen COTTREL (1879- ), Jonah COTTRELL (1880-1966), John Cephas COTTREL (1882- ), Alfred COTTREL (1883- ), Harriet COTTREL (1890- ), Jane COTTREL (1892- ) and Ellen COTTREL (1893- )