Jadon

A man, in the time of Exile and Return · named in 1 verse

the name means thankful Strong's Lexicon

Jadon the Meronothite was one of the people who helped repair the walls of Jerusalem during Nehemiah's time.

From Easton's Bible Dictionary

Judge, a Meronothite who assisted in rebuilding the walls of Jerusalem (Neh. 3:7).

Easton's Illustrated Bible Dictionary, 1897 — public domain, quoted in full and unedited.

First named at Nehemiah 3:7.

Nehemiah 3:7 Next to them, repairs were made by Melatiah the Gibeonite, Jadon the Meronothite, and the men of Gibeon and Mizpah, who were under the authority of the governor of the region west of the Euphrates.