Short answers, pulled from the story.
Louis Leakey, Phillip V. Tobias, and John R. Napier officially named the species Homo habilis in 1964. Australian anthropologist Raymond Dart suggested the name meaning able, handy, mentally skillful, vigorous in Latin.
Homo habilis existed from 2.4 to 1.65 million years ago. The partial juvenile skull OH 7 dates to 1.75 million years ago and represents a key specimen from this period.
Jonathan Leakey and his team unearthed the first significant Homo habilis fossils at Olduvai Gorge in Tanzania in 1960. This site yielded OH 7 along with hand and foot bones dating to 1.75 million years ago.
Assuming australopithecine-like anatomy, the presumed female OH 62 stood about four feet tall and weighed roughly ninety pounds. If she had longer humanlike legs, estimates place her height near five feet and weight around one hundred ten pounds.
Bernard Wood proposed in 1985 that the massive skull KNM-ER 1470 from Lake Turkana represented a different species now called Homo rudolfensis. This specimen was discovered in 1972 and assigned to Homo habilis before the split.