Albert Barnes on 2 Timothy 4:19

Salute Priscilla and Aquila. Prisca, or Priscilla, was the wife of Aquila, though her name is sometimes mentioned first. In regard to their history, Rom 16:3. They were at Rome when Paul wrote his epistle to the Romans, but afterwards went into Asia Minor, which was the native place of Aquila, Acts 18:2, and where they probably died.

And the household of Onesiphorus. 2Ti 1:16.