Adin
Adin is the head of a family that returns from exile. The name appears only in the post-exilic returnee lists, where the "sons of Adin" are counted twice in census totals and once in the company that travels later with Ezra.
In the Returnee Census
The first list of those who came up with Zerubbabel records "The sons of Adin, four hundred fifty and four" (Ezr 2:15). Nehemiah's parallel census gives a higher number for the same family: "The sons of Adin, six hundred fifty and five" (Ne 7:20). Both registers treat Adin as a clan-name, not as a person otherwise described.
With Ezra's Company
A later wave of returnees, traveling with Ezra, includes a smaller contingent: "And of the sons of Adin, Ebed the son of Jonathan; and with him fifty males" (Ezr 8:6). The single named representative — Ebed, son of Jonathan — and the fifty men with him fill out the record of what the family contributes to the second journey home.