Barack Obama's mother's name was Stanley Ann Dunham. She went by the name Ann after High School.
She was born November 29, 1942 in Wichita, Kansas and died November 7, 1995 in Honolulu, Hawaii.
No US presidents were named Nathaniel.
You may be referring to Barack Obama's mother: her legal name was Stanley Ann Dunham, but she did not like her first name (she was named for her father); and she much preferred to use her middle name, Ann.
It was named after George Washington one of the famous US presidents.
Mrs. Herbert Hoover was named Lou.
One, Lincoln
Washington county
It is sometimes called the Mother of Presidents because it has bee the birthplace of eight US Presidents.
Mt. Rushmore is not "named after" any US Presidents. It's named after Charles Rushmore, a lawyer from New York. The presidents whose faces are carved on it are Washington, Jefferson, Lincoln, and Theodore Roosevelt.
NC has counties named Cleveland, Lincoln, Polk, and Wilson but none of them were named for a US President. ( It also has Jackson, Madison, and Washington counties which are named for US Presidents. )
Jefferson city
Two and they were father and son. George and George.
Two- Washington, DC ( US capital) and Monrovia ( Liberia's capital)