Both hill and mountain dwarves were playable in the 1e PHB, as are all three subraces (hairfoot, the most common, stout, and tallfellow) of halflings. the 1e UA added grey (duergar) dwarves, grey, wood, wild (Grugach), valley and dark (drow) elves, and deep gnomes as player choices.
5e's forest gnomes are closer to the standard (later, rock) gnomes of 1e.