The Lexham Bible Dictionary
Jathan (Ἰαθαν, Iathan). Brother of Ananias (or Hananiah) and son of Samaias (or Shemaiah), all characters in the deuterocanonical book of Tobit (5:13–14). In some manuscripts and translations his name is instead given as Nathan.
The Anchor Yale Bible Dictionary
Jathan (Person)
JATHAN (PERSON) [Gk Iathan (Ἰαθαν)]. A son of Shemaiah and a possible kinsman of Tobit (Tob 5:14—Eng 5:13). The archangel Raphael (sent by God to help cure Tobit’s blindness) identified himself as Azarias, the son of Ananias, a relative of Tobit. Tobit, in turn, mentioned the brothers Ananias and Jathan
The International Standard Bible Encyclopedia, Revised
Jathan jāʹthen [Gk. Iathan; LXX A Nathan]; NEB NATHAN. For “Jonathas” (AV), which is the Latin form for the Heb. “Jonathan.” Jonathan was brother of Ananias and “son of the great Shemaiah” (Tob. 5:13 [LXX 14]).
Tyndale Bible Dictionary
JATHAN* One of the sons of Shemaiah, who had accompanied Tobit to Jerusalem to worship (Tb 5:14, nlt mg).
International Standard Bible Encyclopedia
JATHAN<ja’-than> ([ Ἰαθάν, Iathan]; [א‎, Nathan]): For “Jonathas” in the King James Version, which is the Latin form for the Hebrew “Jonathan.” Jonathan was brother of Ananias and “son of that great Sammaias” (Tobit 5:13).
The Zondervan Encyclopedia of the Bible, Volume 3, H–L
Jathan jay’thuhn (Ιαθαν). Son of Shemaiah; apparently a relative of Tobit (Tob. 5:13 RSV; KJV, “Jonathas”; NRSV [v. 14] reads “Nathan,” following Codex Sinaiticus).
Jonathas jon’uh-thus. KJV Apoc. variant of “Jathan” (Tob. 5:13; NRSV, v. 14).
The International Standard Bible Encyclopaedia, Volumes 1–5
JATHAN, jā′than (Ἰαθάν, Iathán; א‎, Nathán): For “Jonathas” in AV, which is the Lat form for the Heb “Jonathan.” Jonathan was brother of Ananias and “son of that great Sammaias” (Tob 5:13).
All the People in the Bible: An A–Z Guide to the Saints, Scoundrels, and Other Characters in Scripture
Jathan [-thun]: son of Shemaiah and brother of Hananiah (16), kinsmen of Tobit (Tob. 5:13)