Welcome ToTHE COULTER DOLL MUSEUM NOTE: The Coulter doll collections are NOT OPEN to the public. MARTIN VAN BUREN WAS PRESIDENT 1837-1841. FIRST LADY SARAH VAN BUREN (President's daughter-in-law). Born Sarah Angelica Singleton, she married a son of Martin Van Buren. By the time Van Buren became President, his wife had died, his daughter-in-law served as First Lady. She was First Lady from 1838 to 1841. The Coulter Doll Museum - First Lady or Ladies of that Administration