Green Dwarf (Winter 1959, Derry, New Hampshire)

The witness was gathering Christmas trees when he encountered this ostensibly alien entity. It did not look very human, and had a high domed forehead with green and wrinkled skin. In place of an external nose, it simply had holes and it had green 'glossy' dorsal spines as well as greyish-green body hair. The feet and hands of the creature were described as being 'like stumps', and so it would be reasonable to suspect that they lacked digits. The creature sounds extremely similar to the legendary Chupacabra from this description - not to mention the fact that this thing could literally be described as a 'little green man'.
Source: Modern Mysteries of the World: Strange Events of the Twentieth Century by Janet and Colin Bord

Ufonaut (December 19, 1954, Valencia, Venezuela)

18-year old jockey José Parra, out on a training run, came upon 6 very hairy little men loading rocks into a disc shaped craft which was hovering less than 9 ft from the ground. Parra started to run away, but one of the little beings pointed a device at him that emitted a beam of violet light, and he found himself paralyzed. The entities jumped aboard their craft & it took off. At the site were found footprints “neither animal nor human.”
Source: http://ufologie.patrickgross.org/ce3/1954-12-19-venezuela-valencia.htm

Dwarves (1900, New South Wales, Australia)

A girl was taken at night from between her sisters as they slept beside a billabong, by little humanoid creatures with leathery skin. They took her underground and covered her in animal fat. She couldn’t see them because her eyes were covered with the fat but she could hear them. She said they just made guttural noises. She was there for a couple of hours, when she started to hear people calling out her name. She began clawing at the tree roots she could feel above her and broke through; she could just make out light and stuck her arm up out of the ground. A man calling out for her ran away as he thought the arm was “from something evil.” He came back with her family and they had a tug of war to get her out. Once they did, they built a big bonfire above the spot.
Source: https://www.reddit.com/r/UFOs/comments/324zve/im_wondering_if_anyone_here_has_any_storiesinfo/?st=jg6ud2dh&sh=451cca66