Easton's 1897 Bible Dictionary:

Ammi
   my people, a name given by Jehovah to the people of Israel (Hos.
   2:1, 23. Comp. 1:9; Ezek. 16:8; Rom. 9:25, 26; 1 Pet. 2:10).


Hitchcock's Bible Names Dictionary (late 1800's):

Ammi, same as Ammah