Isaiah in Easton's Bible Dictionary

(Heb. Yesh'yahu, i.e., "the salvation of Jehovah"). (1.) The son of Amoz (Isa. 1:1; 2:1), who was apparently a man of humble rank. His wife was called "the prophetess" (8:3), either because she was endowed with the prophetic gift, like Deborah (Judg. 4:4) and Huldah (2 Kings 22:14-20), or simply because she was the wife of "the prophet" (Isa. 38:1). He had two sons, who bore symbolical names. He exercised the functions of his office during the reigns of Uzziah (or Azariah), Jotham, Ahaz, and Hezekiah (1:1). Uzziah reigned fifty-two years (B.C. 810-759), and Isaiah must have begun his career a few years before Uzziah's death, probably B.C. 762. He lived till the fourteenth year of Hezekiah, and in all likelihood outlived that monarch (who died B.C. 698), and may have been contemporary for some years with Manasseh. Thus Isaiah may have prophesied for the long period of at least sixty-four years. His first call to the prophetical office is not recorded. A second call came to him "in the year that King Uzziah died" (Isa. 6:1). He exercised his ministry in a spirit of uncompromising firmness and boldness in regard to all that bore on the interests of religion. He conceals nothing and keeps nothing back from fear of man. He was also noted for his spirituality and for his deep-toned reverence toward "the holy One of Israel."...

Link: https://bible-history.com/eastons/I/Isaiah/