Bible dictionaries
Quartus
What Bible dictionaries say about “Quartus”, one article after the other.
Easton’s Bible Dictionary & Webster’s 1828 Dictionary
Quartus - (Easton's Bible Dictionary)
Fourth, a Corinthian Christian who sent by Paul his salutations to friends at Rome (Rom. 16:23).
Matthew George Easton, Easton’s Bible Dictionary; Noah Webster, American Dictionary of the English Language (1828)
The article in Easton + Webster 1828International Standard Bible Encyclopedia (ISBE 1915)
kwor'-tus (Kouartos): A Christian in Corinth who with "Erastus the treasurer of the city" sent greetings to the Christian community in Rome (Ro 16:23). He is known to Paul only as a Christian, "the brother."
International Standard Bible Encyclopedia — James Orr, general editor and contributors; CrossWire SWORD module ISBE 2.2
The article in ISBE 1915Smith’s Bible Dictionary
William Smith; revised by F. N. Peloubet and M. A. Peloubet; CrossWire SWORD module Smith 1.3
The article in Smith