Hananiah b. Hezekiah b. Garon

For another Tanna sage with a similar name, see Eleazar ben Hananiah ben Hezekiah (his son). (http://www.haaretz.com/culture/books/fast-or-feast-1.109244)

Hananiah ben Hezekiah ben Garon (Hebrew: חנניה בן חזקיה בן גרון‎‎, or in short חנניה בן חזקיה, "Hananiah ben [Son of] Hezekiah") was a Jewish Tanna sage, contemporary of House of Shammai and House of Hillel era. He is recounted as being one of several sages who weighed in on the question of the canonization of the Book of Ezekiel. The contradictions of the Book of Ezekiel are said to have been resolved in the aliyah, or upper chamber, of his house of study. He took 300 barrels of oil along with him, and shut himself at that place, where he looked up and studied their claims, until he was able to resolve the contradictions. Some sources identify this story with his son, Eleazar ben Hananiah. http://www.haaretz.com/culture/books/fast-or-feast-1.109244

The Gemara summons the matter:

"Rab Judah said in Rab's name: In truth, that man, Hananiah son of Hezekiah by name, is to be remembered for blessing. If it were not him, the Book of Ezekiel would have been hidden"

Writing the "Megillat Taanit"