From BiblePortal Wikipedia

Webster's Dictionary [1]

(n.) A Portuguese gold coin of the value of eight dollars, named from the figure of King John which it bears; - often contracted into joe; as, a joe, or a half joe.

Cyclopedia of Biblical, Theological and Ecclesiastical Literature [2]

( Ι᾿Ωαννής , the Greek form of the name John or Jehohanan ) occurs in this form in the A.V. of two men in the Apocrypha.

1. A son of Acatan ( 1 Esdras 8:38); the Johanan of  Ezra 8:12.

2. A "son" of Bebai ( 1 Esdras 9:29); the JEHOHANAN of  Ezra 10:28.