Elazar ben Yehuda, a man from the mourners [because of Rabbi Yaakov, Zevachim (28a), Chulin (55, 122b) mourners. And in the Tosefta, chapter 1 of Ma'aser Sheni, a man who eats, and in chapter 2 of Zevachim, eaters]:
Seder_HaDorot,_Tanaim_and_Amoraim.514:1