On 4 Aug 1858 when Mary Ann was 24, she married
Hugh Alexander Robertson, son of
Hugh Campbell Robertson (ca 1804-1867) &
Eurydice Sanderson (ca 1806-1883), in Williams County, Ohio.
Born on 22 Aug 1834 in Johnstown, Cambria County, Pennsylvania. Hugh Alexander died on 1 Nov 1897; he was 63.